Find the ratio of the volume divided by the
temperature for the first data pair. Use significant
figures.
V/T=0.72/276= 0.002 ✓
COMPLETE
Now do the same computation for all six pairs of
values. What is the average of all six fractions V/
T?

Answer: Gamma radiation

Explanation:

Gamma rays have high penetrating power, similar to high-energy X-rays.

Copper has the highest thermal conductivity as compared to other metals in the periodic table.

Thermal conductivity refers to the rate at which heat is transferred by conduction through a unit cross-section area of a material. When a temperature increases at one end it moves to the other end through conduction.

So we can conclude that Copper has the highest thermal conductivity as compared to other metals in the periodic table.

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An alpha helix which is 18 amino acids long will have 12 hydrogen bonds.

The alpha helix (α-helix) is a common in the secondary structure of proteins and is a right hand-helix conformation in which every backbone N−H group hydrogen bonds to the backbone C=O. group of the amino acid located four residues earlier along the protein sequence.

The alpha helix is stabilized by hydrogen bonds (shown as dashed lines) from the carbonyl oxygen of one amino acid to the amino group of a second amino acid.

Because the amino acids connected by each hydrogen bond are four apart in the primary sequence, these main chain hydrogen bonds are called "n to n+4.

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The safe house of lean might influence a product owner to provide better customer service.

The safe house of lean is designed to provide ultimate value to the customer one the shortest possible time.

Employing the safe house of lean might influence the product owner in the following two ways:

Therefore, the safe house of lean might influence a product owner to provide better customer service.

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The best way to make an accurate measurement of the height of a polar liquid is to take the reading from the lowest point of the meniscus.

The meniscus of a liquid is a curved that occurs at the top of a liquid placed in a container as a result of the attractive forces between the molecules of a the liquid.

Polar substances such as water have a concave meniscus as they dip downwards.

Therefore, the best way to make an accurate measurement of the height of a polar liquid is to take the reading from the lowest point of the meniscus.

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Answer:

Lactose is called milk sugar.

Explanation:

Hope It Helps!!!

Answer:

lactose

Explanation:

credits to the answer above !

Answer:

I would say there would be 5-10% in a city, and maybe 10-20% in the country. It mainly varies depending on how big the city is, how many people/districts there are, and the size of the country, which makes it hard to give a certain percent of shops, as there may be small businesses included as well or new shops being built.

Hope this helps! This was pretty confusing for me as well so i hope the answer is alright (×﹏×)

Explanation:

cudhdbsieehe eirbruwnee8ebeuw eodjsuww8

80% copper (Cu)

Cu: 80 :  63.546 = 1.259

O: 20 : 16 = 1.25

Cu:O = 1 : 1

the formula: CuO

89% copper (Cu)

Cu: 89 :  63.546 = 1.4

O: 11 : 16 = 0.6875

Cu:O = 2:1

the formula: Cu₂O

1.5 moles of [tex]O_{2}[/tex] gas

Reaction of Al with [tex]O_{2}[/tex] to form [tex]Al_{2} O_{3}[/tex] is given below...

2 Al + 1.5 [tex]O_{2}[/tex] → [tex]Al_{2} O_{3}[/tex]

Here, 2 moles of Aluminum reacts with 1.5 moles of [tex]O_{2}[/tex]

atomic weight of aluminum = 27 g / mole

so, 1 mole of aluminum contains 27 g

then how many moles are there if it has 54 g in it.

moles of aluminum in 54 g = 54/27 = 2 moles

As per the equation mentioned above,

2 moles of aluminum reacts with 1.5 moles of [tex]O_{2}[/tex].

∴1.5 moles of oxygen gas (02) are needed to completely react with 54.0 g of aluminum.

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Answer:

OH-(aq)+H+(aq)->H2O(l)

Answer is shown in photo.

Explanation :

APEX

The physical matter of which living or non living things are composed is called a molecule

A molecule is the smallest particle of an element or a compound which can normally exist alone and still retain the properties of that substance.

A molecule could be made up of an atom of an element of different atoms of elements such as:

So therefore, the physical matter of which living or non living things are composed is called a molecule.

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Answer:

a.  [tex]P_2=1.38*10^4[mmHg][/tex]

Explanation:

If the Temperature of a gas remains constant (and if the amount of gas molecules doesn't change), then compressing the gas from 12.11 L to 0.669L will increase its pressure through Boyle's Law:  [tex]P_1V_1=P_2V_2[/tex]

We'll also need to recall that atmospheric pressure with units of mmHg (since that is the unit requested in the answer) is 760 mmHg.

Letting the initial Pressure and Volume be the P1 and V1, and the final pressure be the P2 and V2, we can substitute and solve:

[tex]P_1V_1=P_2V_2[/tex]

[tex](760[mmHg])(12.11[L])=P_2(0.669[L])[/tex]

[tex]\dfrac{(760[mmHg])(12.11[L \!\!\!\!-])}{0.669[L \!\!\!\!-]}=\dfrac{P_2(0.669[L]\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{----})}{0.669[L]\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{----}}[/tex]

[tex]13757.2496[mmHg]=P_2[/tex]

Since the final pressure is only measured to 3 significant figures, we round the pressure accordingly

[tex]13800[mmHg]=P_2[/tex]

Note that in scientific notation, this is [tex]P_2=1.38*10^4[mmHg][/tex], occasionally written as [tex]1.38\text{E}4[mmHg][/tex]

Moles of electrons:

The moles of electrons that are transferred are 12F

A balanced equation:

2 moles of Aluminium metal react with excess copper(II) nitrate.

[tex]2Al + 3Cu{(NO_3)}_2 \rightarrow 2Al{(NO_3)}_3 +3 Cu[/tex]

Given:

Moles of Aluminium = 2

As Aluminium goes from 0 to +3 oxidation state

[tex]Al \rightarrow Al^{3+} + 3e^-[/tex]

And copper goes from +2 to 0

[tex]Cu^{2+} + 2e^-\rightarrow Cu[/tex]

On balancing the number of electrons we get:

For 1 mole of Al [tex]6e^-[/tex] is required.

Therefore for 2 moles of Al,

Total [tex](2\times6)[/tex]F mole of electrons

Where F= Faraday's constant= 96500 C

So, 12F moles of electrons are transferred.

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Answer:

the pro on and the electron

Explanation:

a) Both A and R are true and R is the correct

explanation of A.

Answer:

[tex]\fbox {c) A is true but R is false.}[/tex]

Explanation:

Assertion (A):

⇒ Naphthalene balls disappear with time without leaving any solid.

⇒ True √

Reason (R):

⇒ Solid converted to liquid is called sublimation.

⇒ False ×

⇒ Solid converted to liquid is called melting

The molarity of the HCl acid will be 0.001 M.

A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H⁺ ions and OH⁻ ions to generate water.

This is the neutralization of a strong acid (HCl) and a strong base (NaOH), which is ruled by this equation :

HCl (aq) + NaOH (aq) → NaCl (aq) + H₂O (l)

Mole Ratio : 1 mol HCl : 1 mol NaOH

Formula used ;

Molarity  = number of moles  / Volume  (in liters)

Solve for n ;

n = M × V

Substitute values and compute ;

n = 0.40 M × 0.025 liter = 0.01 moles NaOH.

As the molar ratio is NaOH : HCl

Therefore, there will be same number mole for the HCl

Now, Molarity of HCl Solution ;

Molarity = n / volume

Molarity = 0.01 / 10

             =  0.001 M HCl

Hence, The molarity of the HCl acid will be 0.001 M.

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Answer:

yo no se nada

Explanation:

solo se que no se nada xd

Answer:

the answer is c

Explanation:

A carboxylic acid is an organic compound that contains the carboxyl functional group.

M₁V₁=M₂V₂

20 x V₁ = 3.5 x 755

V₁ = 132.125 ml

solid : the molecules are tightly packed

liquid : the molecules have some space in them

gas : molecules can freely move around

Answer:

Explanation:The ratio of Coulomb force to gravitational force for an electron and a proton is given as,

r

1

​

=

R

2

Gm

1

​

m

2

​

​

4πε

0

​

1

​

×

R

2

q

1

​

q

2

​

​

​

=

6.67×10

−11

×9.1×10

−31

×1.67×10

−27

9×10

9

×(1.6×10

−19

)×(1.6×10

−19

)

​

=

1

2.27×10

39

​

The ratio of Coulomb force to gravitational force for two protons is given as,

r

2

​

=

R

2

Gm

2

​

4πε

0

​

1

​

×

R

2

q

1

​

q

2

​

​

​

=

6.67×10

−11

×(1.67×10

−27

)

2

9×10

9

×(1.6×10

−19

)×(1.6×10

−19

)

​

=

1

1.24×10

36

​

(b)

The magnitude of Coulomb force between electron and proton is given as,

F=

4πε

0

​

1

​

×

R

2

q

1

​

q

2

​

​

=

(10

−10

)

2

9×10

9

×(1.6×10

−19

)×(1.6×10

−19

)

​

=2.304×10

−8

N

The acceleration of electron is given as,

a

1

​

=

m

1

​

F

​

=

9.1×10

−31

2.304×10

−8

​

=2.5×10

22

m/s

2

The acceleration of proton is given as,

a

2

​

=

m

2

​

F

​

=

1.67×10

−27

2.304×10

−8

​

=1.4×10

19

m/s

2

Answer:

D

Explanation:

The liquid loses energy while being cooled. It therefore changes to a solid when the liquid is cooled from a temperature above 80°C to 80°C

A substance has a melting point of 80 °C.  It will also change from a liquid to a solid at 80 °C while the liquid loses energy and the correct option is option D.

At the substance's melting point of 80 °C, it undergoes a phase transition from a liquid to a solid. During this transition, the substance loses energy to the surroundings as it releases heat to form a solid structure. The process is called solidification or freezing.

As the substance cools down from a higher temperature to 80 °C, its molecules lose kinetic energy, and they arrange themselves into a more ordered and stable lattice, resulting in the formation of a solid. This release of energy is why the liquid loses energy during the transition. Once the substance reaches 80 °C, it remains at this temperature until the entire amount has solidified.

Thus, the ideal selection is option D.

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Option A is the correct answer that describes the equation best as compared to other statement.

Four molecules of aluminum and three molecules of diatomic oxygen react to form two molecules of aluminum oxide is the statement best describes the equation because this statement have same number of molecules that reacted in the equation. We considered an equation correct that have wrong numbers in front of atoms.

4Al+3O2------------>2Al2O3

So we can conclude that option A is the correct answer that describes the equation best as compared to other statement.

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Answer:

If the gas in the aerosol is placed in a fire then the volume will remain constant.

Explanation:

Avogadro's Law provides the formula needed to determine the relationship between the gas amount and volume present in a container.

                        Plez   na me   brainliestt

The rheo leaf peel will lose water by osmosis and become flaccid. If the rheo leaf was boiled, this would not happen.

Across living membranes, water moves from a region of high to a region of low water potential.

Concentrated sugar solutions have low water potential when compared to the cell sap of the cells of rheo leaf peel. Thus, water will move from the rheo leaf peel to the sugar solution.

This will result in the wilting of the leaf peel.

If the leaf peel is boiled, the membranes in the cells die and can no longer function as a selectively permeable interface.

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Answer:

a) The wrong denominator for the equivalent fraction of kilograms to grams

b) The use of the scale factor of length rather than the scale factor of volume for the equivalent fraction of cubic centimeters to cubic meters

c) The arrival at the correct 1000 kg/m³ rather than 0.1 g/m³ based on the expression on the left of the equation

The density of water = 1 g/cm³

The given equation is presented as follows;

1 g/cm³ × 1 kg/(1000 kg) × 100 cm³/(1 m³) = 1000 kg/m³

The error in the conversion method are;

a) The conversion, 1 kg/(1,000 kg) has an error, the correct conversion is (1 kg)/1,000 g)

b) The volume conversion error, 100 cm³/(1 m³), the correct volume conversion is (100 cm)³/(1 m³) = 1,000,000 cm³/(1 m³)

c) The right of the equal to sign error; using the left side expression only, the (wrong) answer is 0.1 g/m³

The correct equation is presented as follows;

1 g/cm³ × 1 kg/(1000 g) × 1,000,000 cm³/(1 m³) = 1000 kg/m³

Explanation: hope this help.

Answer:

c - 1,000 kg should be written as 1,000 g.

Explanation:

got it correct on the test.

Answer:

+1

Explanation:

The oxidation state of Hg in Hg2Cl2 is +1. It has +1 state. 0=2Hg +2 (-1) Hg=+1. Mercury chloride (HgCl2) is considered as the dominant form of mercury in coal combustion flue gas. The oxidation state of an atom is the charge of this atom after ionic approximation of its heteronuclear bonds. The oxidation number is synonymous with the oxidation state. Determining oxidation numbers from the Lewis structure (Figure 1a) is even easier than deducing it from the molecular formula (Figure 1b). The oxidation number of each atom can be calculated by subtracting the sum of lone pairs and electrons it gains from bonds from the number of valence electrons. Bonds between atoms of the same element (homonuclear bonds) are always divided equally. When dealing with organic compounds and formulas with multiple atoms of the same element, it's easier to work with molecular formulas and average oxidation numbers (Figure 1d). Organic compounds can be written in such a way that anything that doesn't change before the first C-C bond is replaced with the abbreviation R (Figure 1c). Unlike radicals in organic molecules, R cannot be hydrogen. Since the electrons between two carbon atoms are evenly spread, the R group does not change the oxidation number of the carbon atom it's attached to.  

source: www.chegg.com

Answer: O A. +1

Explanation: i took the test

Answer:

Season 5 lol

Explanation:

Answer:

season 1

Explanation:

the man was shot rip