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
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↓
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