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Andreyy89
3 years ago
15

To double-check a chemical in lab before using it, sniff near the opening of the container, true or false?

Chemistry
1 answer:
Bezzdna [24]3 years ago
5 0
The answers is false because you do not want to inhale unknown chemicals
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State symbol for ammonium nitrate solution (Can anyone help with this please?)
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NH^4NO^3

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Which of the following expands to fill the container it is in, but can be compressed to a smaller volume when pressure is applie
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Oxygen gas expands in a container and when pressure is applied it liquifies and occupies a smaller volume

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3 0
3 years ago
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At 60°c, the ion-product constant of water, kw, is 9.25 × 10–14 . what is the ph of pure water at 60°c ?
Rus_ich [418]

Answer:

6.517.

Explanation:

  • It is known that for pure water: [H₃O⁺] = [OH⁻], so water is neutral.  

  • It also is known that:

<em>Kw = [H₃O⁺][OH⁻] = 9.25 x 10⁻¹⁴.</em>

∵ [H₃O⁺] = [OH⁻].

∴ [H₃O⁺]² = 9.25 x 10⁻¹⁴.

∴ [H₃O⁺] = √(9.25 x 10⁻¹⁴) = 3.041 x 10⁻⁷ M.

∵ pH = - log[H₃O⁺]

<em>∴ pH</em> = - log(3.041 x 10⁻⁷) = <em>6.517.</em>

3 0
3 years ago
Air movement and weather conditions are influenced by
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Answer:

The moon

Explanation:

The answer is A; Sorry i put the wrong answer by accident. I was trying to get to another question.

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