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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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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