Chemistry, asked by Anonymous, 1 year ago

please answer this question and also explain it please please please please please please please please please please please please please​

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Answered by raji8115
1

Answer:

a

Explanation:

1 mole of water is 18g

3 gram molecules are nothing but 3 moles which is [3*(2*63.5)]=381g

[63.5 molar mass of Cu]

0.2 moles has 68.4g

same like B one mole of sodium has 23g

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