Calculate the relative formula masses of substances with the following formulas: a) CaH2, AIH3
| August 27, 2021 | education
Calculate the relative formula masses of substances with the following formulas: a) CaH2, AIH3 b) Li2O, MgO c) Cu (OH) 2, (NH4) 2S
а) Mr (CaH2) = 42, Mr (AlH3) = 30,
б) Mr (Li2O) = 30, Mr (MgO) = 40,
в) Mr (Cu(OH)2) = 98, Mr ((NH4)2S) = 68.
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