Question

Fe?+Cl?= Fe?Cl?, К?О?+P?O?= K3PO4,Na+N?=Na?+N,S?O?+O=S?O?

Answer 1

Fe + Cl2 --> FeCl2
3K2O + P2O5 --> 2K3PO4
4Na+N2 --> 2Na2N
2SO2 + O2 --> 2SO3

Answer 2

Н?+Br =H?Br?

Answer 3

Br?

Answer 4

Спасибо огромное

Answer 5

Агась