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navik [9.2K]
3 years ago
5

Asap! first to answer correctly gets 10 pts plus brainliest! :)

Chemistry
1 answer:
olga_2 [115]3 years ago
6 0

Answer:

c

Explanation:

c first quarter waxing half moon

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Mariana [72]

It means to change, and form means shape. So to transform is to change shape.

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3 years ago
A 45 mL sample of nitrogen gas is cooled from 135ºC to 15C in a container that can contract or expand at constant pressure. Wha
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Answer:

V₂ =31.8 mL

Explanation:

Given data:

Initial  volume of gas = 45 mL

Initial temperature = 135°C (135+273 =408 K)

Final temperature = 15°C (15+273 =288 K)

Final volume of gas = ?

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

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T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 45 mL × 288 K / 408 k

V₂ = 12960 mL.K / 408 K

V₂ =31.8 mL

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3 years ago
What is the pH of a 4.7 x 10-9 M HCl solution? *
ValentinkaMS [17]
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What type of chest tube system does this statement describe?
Komok [63]

Answer:

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It's also a quiet mode of activity.

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Why do you think dark surfaces absorb radiation better than light surfaces?
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3 years ago
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