Question

Помогите с химией плиз.
1)CaO+HNO3=
2)HCl+NaOh=
3)Mg+O2=
4)N2O5+H2O=

Answer 1

1. CaO+HNO3=Ca(NO3)2+H2O
2. HCl+NaOh=H2O+NaCl
3. Mg+O2=MgO2
4. N2O5+3H2O=2HNO3+4OH

Answer 2

1)cano3+h20
2)nacl+h2o
3)mg0
4)hno3