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Alenkinab [10]
3 years ago
11

What is the oxidation number for O in H2O2 ?

Chemistry
2 answers:
Nata [24]3 years ago
5 0

Answer:

-2

Explanation:

Wittaler [7]3 years ago
4 0

Answer:

-2

Explanation:

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21.7 mL of gas at 98.8 kPa is allowed to expand at constant
IRISSAK [1]

Answer: 40.68 kPa

Explanation:

Given that,

Original volume of gas V1 = 21.7 mL

Original pressure of gas P1 = 98.8 kPa

New volume of gas V2 = 52.7 mL

New pressure of gas P2 = ?

Since pressure and volume are given while temperature is constant, apply the formula for Boyle's law

P1V1 = P2V2

98.8 kPa x 21.7 mL = P2 x 52.7L

2143.96 kPa L = 52.7 L x P2

P2 = 2143.96 kPa L / 52.7 L

P2 = 40.68 kPa

Thus, the new pressure of the gas is 40.68 kPa.

5 0
4 years ago
I need help with electron affinity chemistry problem. I’m having a tough time.
ExtremeBDS [4]

Answer:

Br Be Ge

Explanation:

Increases in electron affinity

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What is the molariity of a 50.0 mL aqueous solution containing 10.0 grams of acetic acid, CH3COOH
rosijanka [135]

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The molarity is 1.26

Explanation:

5 0
3 years ago
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Effectus [21]

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There are 5! goodluck,

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