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Viefleur [7K]
3 years ago
11

Someone, please help with Chemistry

Chemistry
1 answer:
Ilia_Sergeevich [38]3 years ago
5 0

Answer:

1 one ........................

Explanation:

hi8

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density=mass/volume.

density=14/18

=0.777777777 ~ 0.8g/ml.

It will float because the it lesser than the density of water.

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What is the pH of a substance that has a hydrogen ion concentration of<br> 8.8x10^(-5) M? *
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Answer:

The pH of the substance is 4,06.

Explanation:

The pH indicates the acidity or basicity of a substance. PH values between 0 and less than 7 indicate acidic solutions, 7 neutral and greater than 7 to 14 basic. It is calculated as:

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<em>pH=4,06</em>

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Aqueous sulfuric acid H2SO4 will react with solid sodium hydroxide NaOH to produce aqueous sodium sulfate Na2SO4 and liquid wate
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Answer:

a) 2NaOH+H2SO4→Na2SO4+2H2O2NaOH+H2SO4→Na2SO4+2H2O

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Số phân tử NaOH : Số phân tử Na2SO4 = 2:1

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Change for a liquid state to a solid state is known as what phase change?
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