i need help with this question

Answer:

volume

Explanation:

this is because gallon is a unit of volume.

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The property of the gas that was used by the chemist's report is volume. The correct option is D.

Volume is a scalar quantity that is used to measure the space occupied by a three-dimensional object. In terms of liquid and gas, the volume is measured as the capacity of the container that contains a liquid.

Gas is a state of matter that has no regular shape and no fixed volume. They have the lowest density and their moles are farthest from each other.

Gallon is a unity of volume that is used in the metric system of the United States. There are 100 gallons of gas in the container, the volume of gas is the total number of moles of the gas in a container.

Thus, the correct option is D. Volume.

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Answer:

Both physical and chemical

Explanation:

Plants are able to release toxins and show withering through stages. When a plant has a certain smell, it means it is going through a chemical change, but when you see a plant turning brown, it goes through a physical change.

Corals are a key part of world's diversity .

I have done the quiz so here is the answer:

coastal land development

ocean water pollution.

damage from scuba driving, boating and fishing.

what's the full question so i can give you an answer?

The volume of a gas is changed from 691 mL to 852 mL, the temperature will change from 315 °C to 452°C.

Charles law states that the volume of a given gas is directly proportional to the temperature given that the pressure remains constant.

The charles law equation is as follows:

V1/T1 = V2/T2

V1/588 = 852/725

588 × 852 = 725V1

500,976 = 725V1

V1 = 500976/725

V1 = 691mL

Therefore, the volume of a gas is changed from 691 mL to 852 mL, the temperature will change from 315 °C to 452°C.

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The wavenumber of the scattered stokes is 20475.0108cm-1

Data;

let's make

J' = excited rotational quantum number

J" = ground rotational quantum number

B = rotational constant

for

J = 2 -- 0

J' = 2, J" = 0

[tex]\delta V = B * 2*3 - B*0(0+1)\\\delta V = 6B[/tex]

The rotational constant B for N2 = 1.9982 cm-1

[tex]\delta V = 6 * 1.9982 = 11.9892 cm^-^1[/tex]

The wave number of the scattered stokes radiation is given by

[tex]\delta V_s = V_e_x - \delta V[/tex]

substituting all values across

[tex]\delta V_s = 20487 - 11.9892\\\delta V_s = 20475.0108 cm^-^1[/tex]

The wavenumber of the scattered stokes is 20475.0108cm-1

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Answer:

its a branch of science which deals with chemical and atomaic molecules

Answer:

Chemistry is the study of matter, it properties and the changes that matter undergoes.

When we show the structure of a molecule, we see the arrangement of atoms in the molecule.

The structure of a molecule shows the arrangement of atoms in the molecule.

1) There are 24 carbon atoms in the molecule.

2) There are 30 p- orbitals that are involved in pi bonds in the molecule.

3) We need to add 22 lone pairs of electrons

4) We do not need to add any formal positive charge to the molecule.

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Answer: 0.0625 grams left in the patients blood stream

Explanation:

half life formula: A = o(1/2)^t/d

A represents answer, o represents original amount of iodine used, t represents time iodine is used for, d represnts half life of iodine.

A = 1(1/2)^32/8

A = 0.0625 grams left in the patients blood stream

Answer:

6.00 Ml

Explanation:

I hope this helps

Answer:

I think It Is C

Explanation:

Im really sry if i am wrong

Answer:

installe mo TRUE ID

Explanation:

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1. The molar mass of the element M is 40 g/mol

2. The name of the element is calcium (Ca)

The mole an element is related to it's mass and molar mass according to the following equation:

Mole = mass / molar mass

Mass of nitrogen = 43.5 – 35.3

Mass of nitrogen = 8.2 g

Mole of M : Mole of nitrogen = 3 : 2

35.3 / y ÷ 8.2 / 14 = 3 : 2

(35.3 / y) × (14 / 8.2) = 3 / 2

494.2 / 8.2y = 3 / 2

Cross multiply

8.2y × 3 = 494.2 × 2

24.6y = 988.4

Divide both side by 24.6

y = 988.4 / 24.6

y ≈ 40 g/mol

Thus, the molar mass of the element is 40 g/mol

From the periodic table, the element having a mass number of 40 is Argon and Calcium. Since argon will not react with nitrogen to produce Ar₃N₂.

Therefore, we can conclude that the element is calcium since it can react with nitrogen as illustrated by the equation

3Ca + N₂ —> Ca₃N₂

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The amount of 0.2 M stock NaCl that would be required to make 100 mL, 0.05 M NaCl would be 25 mL

Using the equation of dilution:

M1V1 = M2V2

In this case, M1 = 0.2M, V1 = ?, M2 = 0.05 M, V2 = 100 mL

V1 = M2V2/M1

            = 0.05 x 100/0.2

               = 25 mL

The volume of the stock solution needed is 25 mL

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Answer:

d is the right anwer

Explanation:

Answer:

The answer for the final volume is essentially the same if we converted the 1,775 torr to atmospheres: Using Boyle's law: (1.56 atm)(7.02 L) = (2.335 atm) × V f; 02 L) 2 . 336 at

[tex]\Large \text{1)}[/tex]

[tex]\textbf{Use the formula and substitute the values}[/tex]

[tex]\displaystyle 0.3\ mol/L = \frac{n \ mol}{10 \times 10^{-3}\ L}[/tex]

[tex]\textbf{Solve for the number of moles}[/tex]

[tex]n = 0.003\ mol[/tex]

[tex]\textbf{Calculate final volume }[/tex]

[tex]40+10=50\ mL[/tex]

[tex]\textbf{Number of moles remains same. Solve for concentration}[/tex]

[tex]\displaystyle C=\frac{0.003\ mol}{50 \times 10^{-3}\ L} =0.06\ mol/L[/tex]

[tex]\Large \text{2)}[/tex]

[tex]\displaystyle DF=\frac{V_f}{V_i}[/tex]

[tex]\displaystyle DF=\frac{50}{10}=5[/tex]

Answer: It is possible. Chlorine reacts with potassium bromide to form potassium chloride and bromine.

The initial and final molarity are 0.860 molars and 0.694 molars, respectively.

In chemistry, molarity ([tex]M[/tex]), in molars, is described by the following expression:

[tex]M = \frac{n}{V}[/tex]   (1)

Where:

The molar amount of the solute is determined by this formula:

[tex]n = \frac{m}{M}[/tex]   (2)

Where:

If we know that [tex]m = 17.1\,g[/tex], [tex]M = 397.64\,\frac{g}{mol}[/tex], [tex]V_{1} = 0.050\,L[/tex] and [tex]V_{2} = 0.062\,L[/tex], then the initial and final molarities are, respectively:

[tex]n = \frac{17.1\,g}{397.64\,\frac{g}{mol} }[/tex]

[tex]n = 0.043\,mol[/tex]

[tex]M_{1} = \frac{0.043\,mol}{0.050\,L}[/tex]

[tex]M_{1} = 0.860\,M[/tex]

[tex]M_{2} = \frac{0.043\,mol}{0.062\,L}[/tex]

[tex]M_{2} = 0.694\,M[/tex]

The initial and final molarity are 0.860 molars and 0.694 molars, respectively. [tex]\blacksquare[/tex]

The statement is incomplete, complete form is described below:

A student correctly determines that 17.1 grams of sucrose are needed to make 50 ml of a 1m sucrose solution. when making the solution in the lab, the student measured 50ml of solution and then adds the 17.1 grams of sucrose to the beaker. the student’s resulting solution was not 1m as intended. after the student mixed the solution, the resulting solution was measured at 62ml. What are the initial and final concentrations of the solution?

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Answer:

176.9 g/mol

Explanation:

You have to add the molar masses of the constituent atoms. The molar mass of palladium is 106.42 g/mol and the molar mass of chlorine is 35.45g/mol so 106 + 2(35.45) = 176.9 g/mol

Answer:

The idea with diluting a solution is that the number of moles of solute will remain constant after the initial solution is diluted. The only ...

Explanation:

hope it helps you

Answer:

1232.896 carbon atoms

Explanation:

In one mole of carbon, there are 6.02×1023 atoms. So in two moles, there will be : 1.204×1024 .

1232.896 carbon atoms

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The data indicates a direct relationship with a positive slope.

Direct relationship is a type of relation in which if one factor increases the other will also increases and vice versa. This data represents direct relationship  because the increase occur in one value causes increase of another value so we can conclude that the data indicates a direct relationship with a positive slope.

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Answer: 2Li+(aq) + SO42-(aq) + Ca2+(aq) + 2NO3-(aq) = 2Li+(aq) + 2NO3-(aq) + CaSO4(s)

Explanation:

Li2SO4 + Ca(NO3)2 → LiNO3 + CaSO4

Lithium Sulfate + Calcium Nitrate = Lithium Nitrate + Calcium Sulfate

Balanced:

Li2SO4 + Ca(NO3)2 → 2LiNO3 + CaSO4

Write the state for each molecule if as aqueous, solid or liquid. All nitrates are normally soluble and sulfates are also soluble with few exceptions which are partially soluble.

2Li+(aq) + SO42-(aq) + Ca2+(aq) + 2NO3-(aq) = 2Li+(aq) + 2NO3-(aq) + CaSO4(s)