What is the change in mass (grams) when 2 mol of hydrogen atoms combine to form 1 mol of hydrogen molecules? Remember that 1J=1Kg(m^2/s2) ?
回答 (2)
2020-04-07 1:11 pm
According to the law of conservation of mass, the mass is unchanged in a chemical reaction.
2020-04-07 1:02 pm
Very, very little.
收錄日期: 2021-04-18 18:25:58
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