What two munitions may be used as the warhead for a GBU-15?

Answers

Answer 1

The GBU-15 is a guided bomb unit that can be equipped with either a BLU-109/B or a BLU-116/B warhead. The BLU-109/B is a hardened penetrator designed to penetrate fortified targets such as bunkers and underground facilities.

The BLU-116/B, on the other hand, is a thermobaric warhead designed to produce a blast and heat wave that can penetrate buildings and caves, making it effective against soft targets. The choice of warhead depends on the specific mission requirements and target characteristics. The Guided Bomb Unit or GBU-15 is an unpowered, glide weapon used to destroy high value enemy targets. It was designed for use with F-15E, F-111F and F-4 aircraft, but the U.S. Air Force is currently only deploying it from the F-15E Strike Eagle.

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Related Questions

an ideal-gas mixture whose apparent molar mass is 36 kg/kmol consists of nitrogen n2 and two other gases. if the mole fraction of the nitrogen is 0.26, what is its mass fraction?

Answers

The mass fraction of nitrogen in the ideal gas mixture is 21.6%. The mass fraction of nitrogen in the ideal gas mixture can be calculated using the mole fraction of nitrogen and the molar masses of nitrogen and the other two gases.

First, we need to find the mole fraction of the other two gases by subtracting the mole fraction of nitrogen from 1.

Mole fraction of other two gases = 1 - 0.26 = 0.74

Now, we can use the concept of apparent molar mass to calculate the molar masses of the other two gases.

Apparent molar mass of mixture = (0.26 x molar mass of nitrogen) + (0.74 x molar mass of other two gases)

36 kg/mol = (0.26 x 28 kg/mol) + (0.74 x molar mass of other two gases)

Solving for the molar mass of the other two gases, we get:

The molar mass of the other two gases = 48 kg/mol

Finally, we can use the molar masses and mole fractions to calculate the mass fraction of nitrogen:

Mass fraction of nitrogen = (0.26 x 28 kg/mol) / [(0.26 x 28 kg/mol) + (0.74 x 48 kg/mol)]

Mass fraction of nitrogen = 0.216 or 21.6%

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What does alkalosis begets alkalosis mean?If a patient has alkalosis they are begin to secrete K+ instead of H+ from the PCT Na+/H+ exchanger. But as this occurs hypokalemia begins to occur so the H+ take over again and being excreting in order to save K+ which causes further alkalosis.

Answers

"Alkalosis begets alkalosis" means that when a patient has alkalosis, it triggers a chain reaction that leads to further alkalosis.

In alkalosis, the body tends to secrete potassium (K+) instead of hydrogen (H+) from the proximal convoluted tubule (PCT) Na+/H+ exchanger. This results in hypokalemia or low potassium levels, which can cause several adverse effects on the body.

In response to this, the body begins to excrete more H+ ions to save K+, which further aggravates the alkalosis. Therefore, the body tries to balance the acid-base balance by secreting H+ instead of K+, which eventually leads to a vicious cycle of alkalosis.

This situation can lead to severe health complications and requires prompt medical attention to restore the normal acid-base balance in the body.

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Sea water is classified as a
a) Alloy.
b) Solution.
c) Mechanical mixture.
There should be D, though if the answer is not on here please let me know. I really need this. Thank you!

Answers

Answer:

The correct answer is:

b) Solution.

Sea water is considered a solution because it is a homogeneous mixture of water (solvent) and various dissolved salts, minerals, and other substances (solutes) in which the solutes are uniformly distributed throughout the water.

Double-check for urself! ;D

The correct answer is B (Solution)!

he glucose meter measures the current produced during Reaction 2. If 0.67 μmol of electrons were measured, what mass of glucose was present in the sample? (Note: The molar mass of glucose is 180 g/mol = 180 μg/μmol.)

Answers

We need to understand the reaction that the glucose meter is measuring. Reaction 2 likely involves the oxidation of glucose to produce electrons, which are then measured by the glucose meter.


We are given that 0.67 μmol of electrons were measured. To find the mass of glucose present in the sample, we can use stoichiometry to relate the number of electrons produced to the amount of glucose consumed.

The balanced reaction for the oxidation of glucose is:

C6H12O6 + 6O2 → 6CO2 + 6H2O + energy

We can see that for every glucose molecule oxidized, 6 electrons are produced. Therefore, the number of moles of glucose present in the sample is:

0.67 μmol / 6 = 0.112 μmol

To convert this to mass, we can use the molar mass of glucose:

0.112 μmol x 180 μg/μmol = 20.16 μg

Therefore, there were approximately 20.16 μg of glucose present in the sample.

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give the name or formula. for parts 1 and 2, enter your answer as all lower case with appropriate spacing. for parts 3 and 4 use capital letters where appropriate but don't worry about sub or superscripting. what is the systematic name of na3[alf6]? what is the systematic name of [co(en)2cl2]no3? what is the formula of diamminedichloroplatinum(iv) chloride? what is the formula of hexaamminecobalt(iii) tetrachloroferrate(iii)?

Answers

The systematic name refers to a name or suffix or prefix used to represent a specific group of atoms which helps the identification of the atoms or groups present in the structure simpler.

The chemical formula is mainly used to describe the types of atoms and their numbers in an element or compound.

The systematic name of na₃[alf₆] is sodium hexafluoroaluminate and that of [co(en)₂cl₂]no₃ is trans - Dichloro - bisethylene diamine - cobalt (III) nitrate.

The formula of diamminedichloroplatinum(iv) chloride [Pt (NH₃)₂Cl₂] Cl

Formula of hexaamminecobalt(iii) is [Co (NH₃)₆] Cl₃

Formula of tetrachloroferrate(iii) is [FeCl₄]⁻

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Describe the difference between a molecular formula and an empirical formula. Give an example.

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A molecular formula represents the actual number of atoms of each element present in a molecule, while an empirical formula represents the simplest whole number ratio of atoms of each element present in a compound.

How can a compound be represented by its empiricial and molecular fomulas?


The difference between a molecular formula and an empirical formula is that a molecular formula represents the actual number of atoms of each element in a molecule, whereas an empirical formula shows the simplest whole-number ratio of atoms of each element in a compound. For example, the molecular formula for glucose is C6H12O6, which indicates that there are 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms in a glucose molecule. The empirical formula for glucose, on the other hand, is CH2O, which represents the simplest ratio of 1 carbon atom, 2 hydrogen atoms, and 1 oxygen atom.

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Indicate whether the solutions having following concentration of ions are neutral acidic or basic [H+] = 4 × 10−9 M [OH-] = 1 × 10−7 M [OH-] = 7 × 10−13 M

Answers

1. The solution with [H+] = 4 × 10^-9 M and [OH-] = 1 × 10^-7 M is basic.
2. The solution with [OH-] = 7 × 10^-13 M is acidic.

How to determine the pH of a solution?

To determine whether the solutions with the following concentrations of ions are neutral, acidic, or basic, we will compare the concentrations of [H+] and [OH-] ions in each solution:

1. [H+] = 4 × 10^-9 M
  [OH-] = 1 × 10^-7 M

In this solution, the concentration of [OH-] ions is greater than the concentration of [H+] ions. Therefore, this solution is basic.

2. [OH-] = 7 × 10^-13 M

To find the corresponding [H+] concentration, we can use the ion product of water (Kw), which is:

Kw = [H+] × [OH-]

At 25°C, Kw = 1 × 10^-14

So, we can calculate [H+] as follows:

[H+] = Kw / [OH-]
[H+] = (1 × 10^-14) / (7 × 10^-13)
[H+] ≈ 1.43 × 10^-2 M

In this solution, the concentration of [H+] ions is greater than the concentration of [OH-] ions. Therefore, this solution is acidic.

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The FMU-143 fuze is presently being used with what munitions?

Answers

The FMU-143 fuze is presently being used with the GBU-15 and AGM-130 munitions.

Briefly explain on FMU-143.

FMU-143 fuze is an electro-mechanical impact fuze used in aerial bombs and artillery shells. It is primarily used by the United States Air Force and Navy for various types of high-explosive bombs and can be employed with both general-purpose bombs and cluster bombs.

The FMU-143 fuze is presently being used with the GBU-15 and AGM-130 munitions. These are precision-guided weapons that are employed for various military operations. The GBU-15 is a glide bomb, while the AGM-130 is an air-to-ground missile. The FMU-143 fuze serves as a critical component for ensuring the safe and reliable functioning of these munitions.

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A teacher asks a student to design an investigation using the reaction of chlorine with potassium iodide to create iodine and
potassium chloride. The student starts with an aqueous solution of chloride of unknown molarity and dissolves two grams of
potassium chloride into the solution to begin the reaction. The iodine falls out of solution as a solid precipitate. The equation for
this reaction is shown.
Cl₂ + 2KI
1₂ + 2KCL
Assuming the reaction completes, what measurement could the student use to determine the limiting reactant?

Answers

As they are not directly related to the amount of iodine that can be synthesised, measuring the change in molarity after the KI addition, the heat produced by the KI addition, or the amount of time it takes for the I2 precipitate to develop would not reveal the limiting reactant.

What is Precipitation?

A homogenous solution is transformed into a solid through the chemical process known as precipitation. When the dissolved ions or molecules in a solution chemically interact with one another to generate a compound that is insoluble in the solvent, the resulting solid product is known as a precipitate.

The student could weigh the iodine ([tex]I_2[/tex]) precipitate that forms at the conclusion of the reaction to ascertain the limiting reactant in the given reaction. This is due to the fact that the limiting reactant, which in this instance is the reactant that restricts the amount of iodine that can be generated, is the reactant that is entirely consumed throughout the reaction.

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Multiplying the mass of a material by it’s specific heat will yield the _____of that material?

•heat capacity
•equilibrium constant
•sublimation
•calorimetry

Answers

heat capacity. Heat capacity is the amount of thermal energy required to increase the temperature of a material by one degree (or to raise the temperature by one kelvin). It is equal to the mass of the material multiplied by its specific heat.

What is thermal energy?

Thermal energy is the energy of the motion of molecules and atoms within an object. It is related to the temperature of an object and is the form of energy that determines how hot something is. It is a form of kinetic energy and can be transferred from one object to another.

What is the formula of heat capacity?

The formula of heat capacity is C = [tex]\frac{Q}{T}[/tex], where C is the heat capacity, Q is the amount of heat energy added, and T is the change in temperature. Heat capacity is the amount of heat energy needed to raise the temperature of a substance by one degree Celsius.

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13. How would you prepare 55 mL of a 1.5 M sodium bicarbonate solution? Include supporting calculations and a brief set of directions.

Answers

The steps for preparing 55 mL of a 1.5 M sodium bicarbonate solution is given below.

What are moles?

The mole idea is a useful way to indicate how much of a substance there is. Any measurement can be divided into two components: the magnitude in numbers and the units in which the magnitude is expressed.

1. To prepare 55 mL of a 1.5 M sodium bicarbonate solution, we need to dissolve a certain amount of sodium bicarbonate in water. Here are the steps to follow along with the supporting calculations:

2. Determine the number of moles of sodium bicarbonate needed:

Moles = Molarity x Volume (in liters)

Moles = 1.5 M x 0.055 L

Moles = 0.0825 moles

3. Calculate the mass of sodium bicarbonate needed using its molar mass:

Mass = Moles x Molar Mass

Mass = 0.0825 moles x 84.01 g/mol (molar mass of sodium bicarbonate)

Mass = 6.93 grams

4. Add the calculated amount of sodium bicarbonate to a volumetric flask containing a small amount of water.

5. Add distilled water to the flask until the volume reaches 55 mL.

6. Mix the solution thoroughly until the sodium bicarbonate is completely dissolved.

7. The 1.5 M sodium bicarbonate solution is now ready for use.

Note: It's essential to use a volumetric flask to prepare the solution accurately and to ensure that the final volume is precisely 55 mL. Also, make sure to wear appropriate PPE such as gloves, safety glasses, and a lab coat while handling the chemicals.

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how many moles of TiCl4 are there in 12.5g of titanium (IV) chloride?

Answers

The number of moles of TiCl4 present in 12.5g of titanium (IV) chloride is approximately 0.066 moles.

To find the number of moles of TiCl4 in 12.5g of titanium (IV) chloride, we have to follow these steps:

1. Determine the molar mass of TiCl4.
The molar mass of titanium (Ti) is 47.87 g/mol, and the molar mass of chlorine (Cl) is 35.45 g/mol. Since there are 4 chlorine atoms in TiCl4:

Molar mass of TiCl4 = 47.87 + (4 × 35.45) = 47.87 + 141.8 = 189.67 g/mol

2. Calculate the number of moles.
Use the formula: moles = mass / molar mass

Number of moles of TiCl4 = 12.5 g / 189.67 g/mol ≈ 0.066 moles

So, there are approximately 0.066 moles of TiCl4 in 12.5g of titanium (IV) chloride.

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true or false Global warming is due to the greenhouse gases preventing heat from Earth escaping into space.

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The given statement," Global warming is due to the greenhouse gases preventing heat from Earth escaping into space" is true.

Generally greenhouse gases act similarly as the glass in a greenhouse as they absorb the sun's heat that radiates from the Earth's surface, and these effect traps it in the atmosphere and prevent it from escaping into space. Basically, the greenhouse effect keeps the Earth's temperature warmer than it would otherwise be, supporting life on Earth.

Generally these heat-trapping gases can be recognized as a blanket wrapped around Earth, keeping the planet heat than it would be without them. Some of the examples of greenhouse gases are carbon dioxide, methane, nitrous oxides, and water vapor.

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1.0 M CH3 has a pH of 11.9what is kb

Answers

To find Kb, we really want to initially decide the centralization of hydroxide particles (Gracious ) in the arrangement, which we can do utilizing the pH.

pH = -log[H+]

11.9 = -log[H+]

[H+] = 10[tex]^(-11.9)[/tex]

[H+] = 7.94 x 10[tex]^-12[/tex]

Since CH₃NH₂ is a weak base, we can use the equilibrium expression for weak bases to determine Kb because we can assume that it does not completely dissociate in water:

CH₃NH₂ + H₂O ⇌ CH₃NH₃+ + OH-

Kb = [CH₃NH₃+][OH-]/[CH₃NH₂]

We know that [OH-] = 7.94 x 10[tex]^-12[/tex] from the pH computation, and we can accept that [CH₃NH₃+] is immaterial contrasted with [ CH₃NH₂], so we can set [CH₃NH₂] ≈ [CH₃NH₂] initial = 1.0 M.

Kb = [OH-][CH₃NH₃+]/[CH₃NH₃]

Kb = (7.94 x 10[tex]^-12)(x)/(1.0-x)[/tex]

where x is the concentration of CH₃NH₃+ that is formed.

We can simplify the equation by assuming that x is less than 1.0 M because CH₃NH₃ is a weak base:

Kb = (7.94 x 10[tex]^-12)(x)/(1.0)[/tex]

Kb = 7.94 x 10[tex]^-12 x[/tex]

Now, we need to find x. We can use the equilibrium constant expression for weak bases:

Kb = [CH₃NH₃+][OH-]/[CH₃NH₂]

Kb = (x)(7.94 x 10[tex]^-12)/(1.0)[/tex]

Solving for x:

x = Kb(1.0)/(7.94 x 10[tex]^-12)[/tex]

x = Kb/7.94 x 10[tex]^-12[/tex]

Subbing this worth of x back into the improved articulation for Kb:

Kb = 7.94 x 10[tex]^-12 x[/tex]

Kb = 7.94 x 10[tex]^-12[/tex] (Kb/7.94 x 10[tex]^-12)[/tex]

Kb = Kb

Therefore, the value of Kb CH₃NH₂ is 7.94 x 10[tex]^-12.[/tex]

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what is Circular buffer (or circular queue, cyclic buffer or ring buffer)?

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A Circular buffer, also known as a circular queue, cyclic buffer, or ring buffer, is a data structure used in computer programming to manage a fixed-sized buffer. Unlike a linear buffer, the circular buffer has a circular or cyclic nature, allowing it to efficiently store and retrieve data in sequential order.

The buffer is divided into two regions, a read and write region, and the data is read from and written to the buffer in a circular fashion. When the buffer is full, the oldest data is overwritten by the newest data, making it a useful tool for streaming and real-time applications.

Circular buffers are widely used in embedded systems, multimedia, networking, and other applications where a continuous flow of data is needed. The circular buffer can also be used to implement algorithms like the producer-consumer problem, where data is produced at a certain rate and consumed at another rate.

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Of the four terrestrial planets, which planet has had the Most dense atmosphere?
a. Mars
b. Venus
c. Jupiter

Answers

The correct option is b. Venus. Of the four terrestrial planets (Mercury, Venus, Earth, and Mars), Venus has the most dense atmosphere.

Of the four terrestrial planets, Venus has the most dense atmosphere. The atmosphere of Venus is about 90 times denser than the atmosphere of Earth.

The atmosphere of Venus is composed mainly of carbon dioxide with small amounts of nitrogen and other gases. The thick atmosphere of Venus produces a strong greenhouse effect, which traps heat and causes the planet's surface temperature to be very hot - around 460°C (860°F), making it the hottest planet in our solar system.

In contrast, Mars has a very thin atmosphere, which is about 1% the density of Earth's atmosphere. Mars' atmosphere is primarily composed of carbon dioxide with small amounts of nitrogen and argon. Due to the thin atmosphere, Mars does not have a strong greenhouse effect and its surface temperature is much colder than Earth.

Jupiter, on the other hand, is not a terrestrial planet but a gas giant. It has a very thick atmosphere, which is mainly composed of hydrogen and helium, with small amounts of methane, ammonia, and water vapor.

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ch 16 a 25 ml sample of an unknown HBr solutiin is titrated with .1 M of NaOh. the equivalence point is reached upon the addition of 18.88 ml of the base. what is the concentration of the HBr solution?
a. .0755 M
b. .0376
C. .1
d. .00188

Answers

So, the concentration of the HBr solution is approximately 0.0755 M (option A).

How to determine the concentration of a solution?

To determine the concentration of the HBr solution, you can use the following terms and steps:

1. Given values:
  - Volume of HBr solution (V1) = 25 mL
  - Volume of NaOH solution (V2) = 18.88 mL
  - Concentration of NaOH solution (C2) = 0.1 M

2. Since HBr and NaOH react in a 1:1 ratio, you can use the formula:
  - C1V1 = C2V2, where C1 is the concentration of HBr solution, and V1 is its volume.

3. Solve for C1 (the concentration of the HBr solution):
  - C1 = (C2V2) / V1
  - C1 = (0.1 M × 18.88 mL) / 25 mL
  - C1 = 0.07552 M

4. Round the answer to 4 significant figures, and you'll get the concentration of the HBr solution:
  - C1 ≈ 0.0755 M

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The angles phi and psi are used to describe what?

Answers

The angles phi and psi are commonly used in biochemistry and molecular biology to describe the backbone torsion angles of amino acids in a protein chain.

These angles describe the rotation around the peptide bond between the amino group and the carbonyl group of adjacent amino acids. The phi angle refers to the rotation around the N-Cα bond, while the psi angle refers to the rotation around the Cα-C bond. The values of phi and psi angles determine the conformation of the protein backbone and play a crucial role in protein folding and stability.

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the geometry of the hybrid orbitals about a central atom with sp3d hybridization is: multiple choice linear trigonal planar tetrahedral bent trigonal bipyramidal

Answers

The geometry of the hybrid orbitals about a central atom with sp3d hybridization is trigonal bipyramidal.

Why geometry of the hybrid orbitals trigonal bipyramidal?

When an atom undergoes sp3d hybridization, one s orbital, three p orbitals, and one d orbital hybridize to form five hybrid orbitals that are directed towards the five corners of a trigonal bipyramidal geometry.

The hybridization occurs in order to minimize the energy of the system and maximize the overlap of the orbitals, resulting in a stable and energetically favorable configuration.

The trigonal bipyramidal geometry consists of a central atom surrounded by five other atoms or electron pairs. The two axial positions are located along a straight line passing through the central atom, while the three equatorial positions are located in a plane perpendicular to the axial positions.

The five hybrid orbitals occupy these positions, with the two axial hybrid orbitals pointing directly towards the two axial positions and the three equatorial hybrid orbitals pointing towards the three equatorial positions.

Therefore, sp3d hybridization results in five hybrid orbitals that occupy the five positions of a trigonal bipyramidal geometry.

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a chemist prepares 0.100 mol at a certain pressure and temperature in an expandable container. another 0.010 mol is then added to the same container. how must the volume be changed to keep the pressure and temperature the same?

Answers

According to ideal gas equation, volume must change by 0.5 factor to keep the pressure and temperature the same.

The ideal gas equation is a equation which is applicable in a hypothetical state of an ideal gas.It is a combination of Boyle's law, Charle's law,Avogadro's law and Gay-Lussac's law . It is given as, PV=nRT where R= gas constant whose value is 8.314.The law has several limitations.

Since there are two conditions before addition and after addition  which is 0.1×RT/V=0.2×RT/V thus volume changes by factor of 0.5 which is pressure.

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The deterioration of metals by an electrochemical process is called . The metal is oxidized during this process.

Answers

The deterioration of metals by an electrochemical process is called corrosion. The metal is oxidized during this process, where electrons are lost and the metal becomes weaker and more prone to further corrosion.

Corrosion is a natural electrochemical process that can occur when metals are exposed to various environmental factors, such as air, water, or certain chemicals. During the process of corrosion, the metal surface begins deterioration due to oxidation, which involves the loss of electrons from the metal atoms. This loss of electrons is accompanied by the formation of metal ions, which can dissolve in water and further accelerate the corrosion process.

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PLEASE HELPPP ME IN CHEMISTRYYY! What does the hump in the middle of each energy diagram represent?

(endothermic and exothermic diagrams)

Answers

Answer:Activation Energy

Explanation:

11) Write the formula for copper (II) sulfate pentahydrate.A) Cu2SO3∙H5B) Cu2S∙H2OC) CuS∙5H2OD) (CuSO4)5E) CuSO4∙5H2O

Answers

The formula for copper (II) sulfate pentahydrate is CuSO₄·5H₂O. The answer is E)

Copper (II) sulfate pentahydrate is a salt compound consisting of copper, sulfur, oxygen, and hydrogen atoms. The formula CuSO₄·5H₂O represents the compound's molecular structure, which consists of one copper (Cu) atom, one sulfur (S) atom, four oxygen (O) atoms, and ten hydrogen (H) atoms.

The "Cu" in the formula represents copper, which has a valency of 2 in this compound, indicated by the Roman numeral II in the name. The "SO₄" in the formula represents the sulfate ion, which consists of one sulfur atom and four oxygen atoms. The sulfate ion has a valency of 2- in this compound, balancing the 2+ charge of the copper ion.

The "5H₂O" in the formula represents the five water molecules that are chemically bound to the copper (II) sulfate molecule. These water molecules are called "water of hydration" and can be removed from the compound by heating it.

Thus, the formula CuSO₄·5H₂O represents copper (II) sulfate pentahydrate, a salt compound with a specific molecular structure.

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What is another amino acid that is hydroxylated that occurs in collagen?

Answers

Answer:

Hydroxylation of lysine and proline amino acids occurs inside the lumen. This process is dependent on ascorbic acid (Vitamin C) as a cofactor.

Have a Nice Best Day : )

Calculate the mass of FeS formed when 9.42 g of iron reacts with 8.50 g of sulfur
according to the following reaction.
Fe(s) + S(s) = FeS(s)
A) 17.9 g B) 87.9 g C) 26.0 g D) 14.8 g E) 1.91 × 10-3 g

Answers

The mass of FeS formed when 9.42 g of iron reacts with 8.50 g of sulfur is 26.0 g.

What is iron react?

Iron React is a web development framework for building user interfaces and single-page applications. It combines the power of React and webpack to create a modern and efficient development workflow. It provides an intuitive API for creating components, routing, data management, and more.

To calculate the mass of FeS formed when 9.42 g of iron reacts with 8.50 g of sulfur, we must first convert the given masses into moles.
9.42 g of iron is equal to 0.12 moles, and 8.50 g of sulfur is equal to 0.50 moles.
Since the ratio of iron to sulfur in the equation is 1:1, the moles of FeS formed is equal to the sum of the moles of iron and sulfur, which is 0.62 moles. Finally, we convert the moles of FeS to grams by multiplying the moles by the molar mass of FeS, which is 87.91 g/mol.
The mass of FeS formed when 9.42 g of iron reacts with 8.50 g of sulfur is therefore 0.62 mol x 87.91 g/mol
= 26.0 g.

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Surface_____are wind-driven ocean currents that occur near the surface of the water. These currents move in a similar path as wind currents.

Answers

Answer:

Gyre

Explanation:

I looked it up, may not be correct

7C - Muscles and Bones


1.What gases does your body need and why?


2.How and why your Breathing rate/Pulse rate changes. (Difference between active and
resting)

3..what is a drug

4..What is the structure of the human arm and what muscles help it to move.

5. What is the Structure of capillaries and how 02/CO2 are stored and carried.

7F - Acids and Alkalis




1.What is an acid?

2.What is an Alkali?

3.What is a Neutral substance?

4.How does litmus reacts to Acids and Alkalis.

5.What is a variable?

6.What is the name of the reaction between an acid and an alkali?

7.What are the common Word equations (eg: sulfuric acid + zinc oxide—> zinc nitrate + water)

8.What are products and what are reactants?

Answers

7C - Muscles and Bones:  1. The body needs oxygen (O2) to carry out cellular respiration and produce energy, and it also needs carbon dioxide (CO2) to eliminate waste from the body.

2. Breathing rate and pulse rate increase during physical activity to meet the increased oxygen demands of the body. This increase helps to supply oxygen to the muscles and remove CO2 from the body. During rest, breathing rate and pulse rate decrease as the oxygen demands of the body decrease.

3. A drug is any substance that alters the normal functioning of the body.

4. The human arm consists of three major bones: the humerus, radius, and ulna. The muscles that help move the arm include the biceps brachii, triceps brachii, brachialis, and brachioradialis.

5. Capillaries are small blood vessels with thin walls that allow for the exchange of gases, nutrients, and waste products between the blood and body tissues. Oxygen is stored in the red blood cells, and carbon dioxide is transported in the plasma and red blood cells.

7F - Acids and Alkalis

1. An acid is a substance that donates hydrogen ions (H+) in a solution, lowering its pH.

2. An alkali is a substance that accepts hydrogen ions (H+) in a solution, raising its pH.

3. A neutral substance has a pH of 7, indicating that it is neither acidic nor alkaline.

4. Litmus paper is a type of indicator that turns red in the presence of an acid and blue in the presence of an alkali.

5. A variable is any factor that can be changed or controlled in an experiment.

6. The reaction between an acid and an alkali is called a neutralization reaction.

7. Common word equations include: hydrochloric acid + sodium hydroxide → sodium chloride + water; sulfuric acid + calcium hydroxide → calcium sulfate + water.

8. Reactants are the substances that react in a chemical reaction, while products are the substances that are formed as a result of the reaction.

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your pharmacy stocks 75% lansoprazole suspension and a prescription is written for 415 ml of 35% lansoprazole suspension. how many ml of solvent is necessary to carry out the dilution? (round to the nearest whole ml without units!)

Answers

We need to add approximately 221 ml of solvent to 415 ml of 75% lansoprazole suspension to obtain 415 ml of 35% lansoprazole suspension.

Let x be the volume of solvent (in ml) needed to dilute the solution.

We can use the following formula to calculate the volume of solvent needed for dilution:

Amount of solute in the final solution = Amount of solute in the initial solution

The amount of solute is equal to the concentration multiplied by the volume of the solution. Thus, we have:

0.35 x 415 = 0.75 (415 + x)

Simplifying the equation, we get:

145.25 = 311.25 + 0.75x

0.75x = 145.25 - 311.25

0.75x = -166

x = -166 / 0.75

x = -221.33

Since we cannot have a negative volume of solvent, the result must be due to rounding errors. We round x to the nearest whole ml, which gives:

x ≈ -221 ml ≈ 221 ml

Therefore, we need to add approximately 221 ml of solvent to 415 ml of 75% lansoprazole suspension to obtain 415 ml of 35% lansoprazole suspension.

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Question 2 of 30
A television commercial shows happy people while describing some medical
symptoms. These symptoms include feeling tired and sad. The medication
being advertised by the commercial was approved by the FDA to treat a
disease that causes these symptoms. The narrator says that it is available by
prescription only and contains 1% of the active ingredient. What can you infer
about this medication?
OA. The people in the commercial are happy because they were
treated by the medication.
B. The medication would be more effective if it contained 10% of the
active ingredient.
C. Anyone who has the symptoms should request a prescription
from his or her doctor.
D. The medication can treat people who have the disease described.

Answers

The medication can treat people who have the disease described. According to the commercial, the drug has FDA approval to treat a condition whose symptoms are listed.

Additionally, the narrator notes that the medication only comes with a prescription and has 1% of the active substance. We can deduce from this information that the drug can effectively treat persons who have the condition generating these symptoms, but obtaining it requires a prescription. The commercial provides no support for the other possibilities.

Therefore, the correct option is D.

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ch 13 dinitrogen monoxide decomposes into nitrogen and oxygen when heated. the initial rate of the reaction is .022M/s. what is the rate of change of the concentration of N2O (that is delta[N2O]/delta T
2N2O(g)---> 2N2(g)+O2(g)
a. -.022
b.-.011
c.-.044
d..022

Answers

Dinitrogen monoxide decomposes into nitrogen and oxygen when heated. the initial rate of the reaction is .022M/s. 0.044 is the  rate of change of the concentration of N[tex]_2[/tex]O. Therefore, the correct option is option C.

Reaction rate is the rate at which the chemical reaction moves forward. It is frequently described in terms of alternatively the amount of a reactant which is consumed in a unit period or the intensity of a product that is generated in a unit of time (amount per unit volume). You may also define it in terms of how much of the reactants are used up or how much of the products are produced in a given amount of time.

2N[tex]_2[/tex]O(g)→ 2N[tex]_2[/tex](g)+O[tex]_2[/tex](g)

-Δ[N[tex]_2[/tex]O]/2ΔT=0.022

-Δ[N[tex]_2[/tex]O]/ΔT=0.022×2

                   = 0.044

Therefore, the correct option is option C.

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