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gizmo_the_mogwai [7]
3 years ago
7

Which of the following is not a chemical change?

Chemistry
1 answer:
MaRussiya [10]3 years ago
3 0

Answer:

May be boiling is the answer because all other options are a proper chemical changes.

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As the deapth of the ocean increases the population of ocean creatures..
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Answer:

( A ) Increases

Explanation:

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Answer:

Hydrogen bonding

Explanation:

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A sample of gas occupies 806 mL at 26 degrees c and 1 atm. Find the volume of the gas at STP
Varvara68 [4.7K]
The standard temperature and pressure is 273 K and 1 atm. Since, pressure is not changed we can use Charle's law for the calculations.

<span>Charle's law says "at a constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute temperature".

V α T 

Where V is the volume and T is the temperature in Kelvin of the gas. We can use this for two situations as,
V</span>₁/T₁ = V₂/T₂<span>

</span>V₁ = 806 mL<span>
T</span>₁ = 26 ⁰C = 299 K
V₂ <span>= ? </span><span>
T</span>₂ = 273 K<span>
<span>
By applying the formula,
</span></span>(806 mL / 299 K) = (V₂ / 273 K)

                       V₂ = 735. 91 mL

<span>
Hence, the answer is "a".</span>

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3 years ago
Help with chemistry please!! This is the last question I need to do. (Image attached)
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4 years ago
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