Question

plz answer me fast ​

Answer 1

Answer:

1.1)17.031g/mol

1.2)291g/mol

1.3)34.1g/mol

1.4)189g/mol

2.1)110.98g/mol

2.2)105.9888g/mol

2.3)61.9789g/mol

2.4)101.96g/mol

3)BO2 and BO3.

4.1)Na2S.

4.2)Cu(NO3)2.

4.3)(NH4)2SO4.

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