Răspuns:
2. acizi neoxigenati
HCl acid clorhidric
H2S acid sulfhidric
3.
a) NaOH + HCl => NaCl + H2O
b) Mg + H2SO4 => MgSO4 + H2
c) H2O + CO2 => H2CO3
4.
a) H2 + Cl2 => 2HCl
b) CuO + H2 => Cu + H2O
c) CH4 => C + 2H2
d) H2 + 3N2 => 2NH3
5.
H2SO4 + Ca=> CaSO4 + H2
H2 + Br2 => 2HBr
