When water vapor cools, it condenses.
Which number represents this process on the hydrologic cycle
diagram?
O 1
02
O 3
04

Answer:

B.) 3.85 x 10⁻⁷ m

Explanation:

To find the wavelength, you can use the following formula:

wavelength = speed of light / frequency

Since you have been given both the speed of light and frequency, you can plug these values into the equation to find wavelength.

wavelength = speed of light / frequency

wavelength = (3.00 x 10⁸ m/s) / (7.80 x 10¹⁴ Hz)

wavelength = 3.85 x 10⁻⁷ m

1.2 L of hydrogen can be produced at a pressure of 2 atm and a temperature of 298 K.

The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

Step 1: Write the balanced equation

Mg + 2 HCl ⇒ MgCl₂ + H₂

Step 2: Calculate the moles corresponding to 2.3 g of Mg

The molar mass of Mg is 24.31 g/mol.

2.3 g × 1 mol ÷24.31 g = 0.095 mol

Step 3: Calculate the moles of H₂ produced

0.095 mol Mg × 1 mol H₂ ÷ 1 mol Mg = 0.095 mol H₂

Step 4: Calculate the volume occupied by the hydrogen

We will use the ideal gas equation.

P × V = n × R × T

V = n × R × T÷P

V = 0.095 mol × (0.0821 atm.L/mol.K) × 298 K÷2 atm

V =  1.2 L

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0.47 M is the molarity of solution B if 10.00 g of LiCl is dissolved in water to make 1.00 L of "Solution A".

Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per litres of a solution. Molarity is also known as the molar concentration of a solution.

[tex]Molality = \frac{Moles \;solute}{Solvent \;in \;kg}[/tex]

Moles of  LiCl

[tex]Moles = \frac{mass}{molar \;mass}[/tex]

[tex]Moles = \frac{10.00 g}{42.394 g/mol}[/tex]

Moles = 0.2358824362

[tex]Molality = \frac{0.2358824362}{0.5 L}[/tex]

Molarity = 0.4717648724 M =0.47 M

Hence, 0.47 M is the molarity of solution B.

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There are three kinds of Hydrogen in  2-methyl-2-butene

The correct question is

How many kinds of  hydrogen atoms are present in 2-methyl-2-butene

Atom was discovered by Dalton's Atomic theory , he predicted that each element consist of large number of a very small thing known as atom.

In the structure of 2-methyl-2-butene there are 3 types oh Hydrogen

1. Attached to the Carbon atom connecting the methyl ion to the butene

2. Connected to the last Carbon atom

3. Connected to the Carbon bond having double bond.

Therefore there are three kinds of Hydrogen in  2-methyl-2-butene.

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The formula mass of a substance is the sum of the average atomic masses of each atom represented in the chemical formula and is expressed in atomic mass units. The formula mass of a covalent compound is also called the molecular mass.

0.7 mol of H⁺ ions are present in 2.8 l of 0.25 m hydrobromic acid solution.

Hydrobromic acid is a strong acid, we can assume that all acid molecules dissociate completely to yield H+ ions and dissociated anion.

                             Hbr (s) →  H⁺ (aq)  +  Br⁻ (aq)

moles H⁺ = ([tex]2800ml[/tex]) ( [tex]\frac{1L}{1000ML}[/tex])  ([tex]\frac{0.25 mol Hbr}{L}[/tex]) ( [tex]\frac{1 mol H}{1 mol Hbr}[/tex])

               = 0.7 mol

Therefore, 0.7 mol of H⁺ ions is present.

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Answer: 2.5

Explanation: you devide mol solute which is 2.0 and the L solution which is 0.80M, and after you divide the two you get 2.5

i also had this question <3

The molarity is an important method to calculate the concentration of a solution. The volume of potassium nitrate of 0.80 molarity and 2.0 mol moles is  2.5 L.

The molarity of a solution is defined as the number of moles of the solute present per litre of the solution. It is mainly employed in calculating the molarity of a binary solution. It is represented as 'M' and unit is mol L⁻¹.

The equation used to calculate the molarity is given as:

Molarity = Number of moles of the solute / Volume of the solution in litres

Here molarity = 0.80 M

Number of moles = 2.0 mol

Then the volume of the solution =  Number of moles of the solute / Molarity

Volume = 2.0 / 0.80 = 2.5 L

Thus the volume of the solution is 2.5 L.

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Answer:

they both transport molecules along or down the concentration gradient of the solute and tdo not require energy from an outside source.

Monosaccharides are the group of carbohydrates that are the simplest form of sugar. Option A galactose is a monosaccharide sugar.

Monosaccharides are simple sugars and are the fundamental unit of carbohydrates.

The general structural formula for the monosaccharides is (CH₂O)ₙ

The structure of the monosaccharide sugar contains carbon, oxygen, and hydrogen molecules in their structure.

Galactose that is a simple sugar with six carbon atom rings Hence,  option A is a correct option

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The domain remain unaffected by the magnet is the right answer.

Both the north poles and the south poles of the domains point toward the magnet so the domains is unaffected by the magnet as the nail approaches to the south pole of a magnet.

So we can conclude that the domain remain unaffected by the magnet is the right answer.

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Answer. The domain remain unaffected by the magnet

Answer:

Cryogenic distillation is the commercially viable separation; however, it consumes over 20 Gigajoules of energy for every ton of ethylene produced. This energy consumption is associated with significant greenhouse gas emission and depletion of non-renewable energy resources

Explanation:

hope it's helpful to you

Answer:

the mixture two is the Heterogeneous solution and the mixture 1 (sugar solution) is true solution

Explanation:

Heterogeneous solutions are solutions with non-uniform composition and properties throughout the solution. A solution of oil and water, water and chalk powder and solution of water and sand, etc.

True solution

The sugar solution is a mixture of sugar and water which is a true solution. True Solution is a homogeneous mixture of two or more materials with a particle size of less than 10-9 m or 1 nm dissolved in the solvent.

A solute is a substance to be dissolved.

The solvent is the one in which solute is dissolving.

In the sugar solution sugar is the solute and water is the solvent.

Answer:

Explanation:

your cool

The aria ""batter my heart"" from doctor atomic has musical influences from the era of Renaissance.

The Renaissance era can be regarded as the era around 14th century and batter my heart was produced around the 13/14th century.

The batter my heart was among the Sicilian school of court poets, that was very famous which  emphasizing the importance of the heart.

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Answer: The molecules will move more quickly.

Explanation:

As temperature increases, the kinetic energy of the particles increases, causing them to move more quickly.

Answer:

it was more acidic

Explanation:

changing the pH of the solution and making it more acidic results in the color of the solution changing it from blue to yellow

solution is Bromothymol blue

in a ph below 6 it turns yellow because

a ph below 6 is acidic

a ph above 7.6 its blue because

a ph above 7.6 is basic

Bromothymol blue is made in a basic solution, so it starts out as blue, thus the name 'blue'. It changes to yellow in acidic conditions

labxchangeorg

wikipedia

studycom

Answer:

14.212 x 10^23 atoms

Explanation:

Xenon is a noble gas and is MONOTOMIC so

EACH mole is an Avagadro's Number of atoms

   2.36 * 6.022 x 10^23   atoms =

Answer:

b) Product

c) Combustion

c) speeds up the rate of reaction

Explanation:

the substance produced by a chemical reaction is called a product (b)

Combustion (c) reactions are involving oxygen and "another substance" [and hydrocarbons] to produce carbon dioxide and water.

A catalyst acts to speed up the rate of a reaction (c)

 > note how it "speeds up" reaction: , it [a catalyst] lowers the pressure or temperature needed to start one--but it isn't used/consumed in the reaction

So, the answers are: b, c, c

hope this helps!!

The characteristics of a double replacement reaction as well as example to depict it are clearly explained below.

A double-replacement reaction is one that occurs when parts of two ionic compounds are exchanged thereby making two new compounds.

A characteristic of a double-replacement equation is that there are two compounds as reactants and two different compounds as products.

A precipitate forms in a double-replacement reaction when the cations from one of the reactants combine with the anions from the other reactant to form an insoluble ionic compound.

An example of a double displacement reaction is;

CuCl₂(aq) + 2AgNO₃(aq) → Cu(NO₃)₂(aq) + 2AgCl(s)

Due to the fact that a precipitate is formed, the double replacement reaction is also called a precipitation reaction.

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The reaction that exemplifies a double replacement reaction is as follows: K2S + CoCI2 -> 2KCI + CoS, which is option 1.

A double replacement reaction is a type of reaction in which two elements are substituted in the reacting compounds.

In the reaction given as follows:

K2S + CoCI2 -> 2KCI + CoS

Therefore, the reaction is a type of double replacement reaction.

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Answer:

27.4 gram is the solution it's simple dude...

Explanation:

don't be afraid of huge question they confuse you you need not to be confused

now see simple solution

molality is denoted by m

so

m= moles of solute / mass of solvent in kg.

i hope your know the meaning of solute and solvent....

so moles are given 0.467

and molar mass is given 58.44

so just take out the gram means

by applying formula

58.44×0.467

it will give 27.4 grams simple.....

The daily mean, given the data from the question is 15 °C

Mean = Sumation of data / Number of data

Mean = (20 + 10) / 2

Mean = 30 / 2

Mean = 15 °C

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Answer:

Step 1: Identify the resistivity (ρ) , length (L), and radius (r) of the wire. Step 2: Calculate the cross-sectional area of the wire using the formula for the area of a circle: A=πr2 A = π r 2 . Step 3: Calculate the resistance (R) of the wire using the formula for resistance: R=ρLA R = ρ L A

10.8 moles are present in 6.5 × 10²⁴ atoms of Barium (Ba). Details on how to calculate number of moles can be found below.

The number of moles of a substance can be calculated by dividing the number of atoms in the substance by Avogadro's number.

According to this question, 6.5 × 10²⁴ atoms of Ba are present, the number of moles is calculated thus:

no of moles = 6.5 × 10²⁴ ÷ 6.02 × 10²³

no of moles = 1.08 × 10¹

no of moles = 10.8moles

Therefore, 10.8 moles are present in 6.5 × 10²⁴ atoms of Barium (Ba).

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In catalysis and base catalysis, a chemical reaction is catalysed by an acid or a base.

Covalent catalysis involves the formation of a covalent bond.

Metal ions contribute to the catalytic process through their ability to attract or donate electrons.

An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell.

In catalysis and base catalysis, a chemical reaction is catalysed by an acid or a base. by Bronsted - Lowry acid-base theory, the acid is the proton ( hydrogen ion, H+) donor and a base is the proton accentor typical reaction catalyzed by proton transfer are esterifications and aldol reactions .

Covalent catalysis involves the formation of a covalent bond between the enzyme and at least one of the substrates involved in the reaction. Often times this involves nucleophilic catalysis which is a subclass of covalent catalysis.

Metal ions are essential for the catalytic action of some enzymes. Metal ions contribute to the catalytic process through their ability to attract or donate electrons. Some metals bind the substrate by coordination links. Others contribute to maintaining the tertiary and quaternary structures of the enzyme molecule.

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The wheels will be completely used up and  it is the limiting reactant in this case.

The limiting reactant is the reactant that is completely used up in a reaction, and thus determines when the reaction stops.

The wheels will be completely used up and  it is the limiting reactant in this case.

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Answer:

ketones and aldehydes

Explanation:

just took it!

Answer: C. A substance that results when two or more substances combine physically but not chemically

The independent variable is the different amounts of salt that will be added to the water.

A variable is any characteristic, number, or quantity that can be measured or counted.

The independent variable is the different amounts salt that will be added to the water (what is done by the scientist).

The dependent variable is the boiling temperature of the water (what is being measured).

HYPOTHESIS: If salt is added to water then, the boiling temperature is lowered.

Hence, the independent variable is the different amounts of salt that will be added to the water.

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[tex]\huge\textbf{Hey there!}[/tex]

[tex]\huge\textbf{Better understanding of the lesson}[/tex]

[tex]\text{Formula for finding the area of rectangular prism: \boxed{\mathsf{2(wl + hl + hw) = a}}}\\\text{Whereas, \bf l = \underline{length}, w = \underline{width}, h = \underline{height.}, and a = \underline{area}}[/tex]

[tex]\huge\textbf{Now, let's solve for the given equation}[/tex]

[tex]\mathsf{a = 2\times(8\times6 + 9\times6 + 9\times8)}[/tex]

[tex]\mathsf{a = 2\times(48 + 54 + 72)}[/tex]

[tex]\mathsf{a = 2(48) + 2(54) + 2(72)}[/tex]

[tex]\mathsf{a = 96 + 108 + 144}[/tex]

[tex]\mathsf{a = 204 + 144}[/tex]

[tex]\mathsf{a = 348}[/tex]

[tex]\huge\textbf{Therefore, your answer is: \boxed{\mathsf{348\ cm^2}}}\huge\checkmark[/tex]

[tex]\huge\textbf{Good luck on your assignment \& enjoy}\\\huge\textbf{your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]