Question

Решите плиз:

1) Na + ... = Na2O
2) Na2O + ... = NaOH
3)NaOH + ... = Na2SO4
4)Na + ... = NaOH
5) Na2O + ... = NaCl
6) Na + ... = NaCl
7) NaOH + ... = NaCl
8) NaCl + ... = AgCl

Answer 1

4Na + O2 -> 2Na2O
Na2O + H2O -> 2NaOH
2NaOH + H2SO4 -> Na2SO4 + 2H2O
2Na + 2H2O -> 2NaOH + H2
Na2O + 2HCl -> 2NaL + H2O
2Na + Cl2 -> 2NaCl
NaOH + HCl -> NaCl + H2O
NaCl + AgNO3 -> NaNO3 + AgCl

Answer 2

4Na + O2 = 2Na2O
Na2O + H2O = 2NaOH
2NaOH + H2SO4 = Na2SO4 + 2H2O
2Na + 2H2O = 2NaOH + H2↑
Na2O + 2HCl = 2NaCl + H2O
2Na + Cl2 = 2NaCl
NaOH + HCl = NaCl + H2O

NaCl + AgNO3 = NaNO3 + AgCl↓
Na⁺+Cl⁻+Ag⁺+NO₃⁻ = Na⁺+NO₃⁻+AgCl↓
Ag⁺+Cl⁻ = AgCl↓