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Yuki888 [10]
2 years ago
10

Which of the following ways can the volume of a gas be changed, without changing its mass? Select all that apply.

Chemistry
2 answers:
pochemuha2 years ago
8 0

Answer:

It can be spread into a smaller container

It can ve spread out into a larger container

It can be dissolved into a liquid

nlexa [21]2 years ago
8 0

Answer:

the answers are

It can be compressed into a smaller container.

It can be spread out into a larger container.

It can be dissolved into a liquid.

It can be heated up.

Explanation: I just did the assignment and these were the correct answers

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matrenka [14]
Nitrogen is 5 valence electrons
oxygen is 6 valence electrons
fluorine is 7 electrons
6 0
2 years ago
The compound trimethylamine, (CH3)3N, is a weak base when dissolved in water. Write the Kb expression for the weak base equilibr
Zina [86]

Answer:

Kb = [OH⁻] . [C₃H₉NH⁺] / [ C₃H₉N ]

Explanation:

The equation for the reaction of trimethylamine when it is dissolved in water is:

C₃H₉N  +  H₂O ⇄ C₃H₉NH⁺ + OH⁻   Kb

1 mol of trimethylamine catches a proton from the water in order to produce trimethylamonium.

It is a base, because it give OH⁻ to the medium

Expression for Kb (Molar concentration)

Kb = [OH⁻] . [C₃H₉NH⁺] / [ C₃H₉N ]

7 0
3 years ago
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nikitadnepr [17]

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8 0
3 years ago
What pressure, in atm, is exerted by 2.50 L of gas containing 1.35 mol at 320 K?
salantis [7]

Answer:

Option A = 14.19 atm

Explanation:

Given data:

Volume of gas = 2.50 L

Number of moles of gas = 1.35 mol

Temperature of gas = 320 K

Pressure of gas = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

Now we will put the values in formula.

P × 2.50 L =  1.35 mol × 0.0821 atm.L/ mol.K×   320

P = 35.467 atm.L/ 2.50 L

P = 14.19 atm

Thus, option A is correct.

6 0
3 years ago
Does xenon react with nitrogen and explain why
KiRa [710]
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4 0
2 years ago
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