Question

Расставить коэффициенты в химических уравнениях:

1. N2+ H2 ---------- NH3

2. MNO2 + H2 --------- MN+H2O

3.Al + Cl2 ----------Al Cl3

4.P+S------P2 S5

5.CaO+P2 O5-------Ca3 (PO4)2

6.Na OH +H2 SO4-------Na2 SO4 +H2O

Answer 1

1. N2+ 3H2 ---------- 2NH3

2. MNO2 + 2H2 --------- MN+2H2O

3.2Al + 3Cl2 ----------2Al Cl3

4.2P+5S------P2 S5

5.3CaO+P2 O5-------Ca3 (PO4)2

6.2Na OH +H2 SO4-------Na2 SO4 +2H2O

Answer 2

1.N2+3H2=2NH3

2.MNO2+2H2=MN+2H2O

3.2Al+3Cl2=2AlCL3

4.2P+5S=P2S5

5.3CaO+P2O5=Ca3(PO4)2

6.2NaOH+H2SO4=Na2SO4+2H2O