Question

1) HNO3 + CuSO42)HCl + FeS3) H2SO4 + Fe(OH)3

Answer 1

1)2 HNO3+CuSO4= Cu(NO3)2+ H2SO4
2) HCl+ FeS=FeCl2+ H2S
3) H2SO4+ Fe(oh)3= Fe2(SO4)3+H2O

Answer 2

Let's balance the chemical equations:

1. HNO3 + CuSO4 → Cu(NO3)2 + H2O + SO2 + NO

2. 6HCl + Fe2S3 → 2FeCl3 + 3H2S

3. H2SO4 + 2Fe(OH)3 → Fe2(SO4)3 + 6H2O