Question

1. CaCO, CaO+CO,
2. Al+S—AIS
3. P+O2P20
4. HgO–Hg+O2
5. N2+H2NH3

Answer 1

CACO3=t° CAO+CO2

2AL+3S=t° AL2S3

4P+5O2=2P2O5

2HGO=2HG+O2

N2+3H2=2NH3(обратимая р-ция)