Na→naoh→nacl-? ca→cao→ca(oh)2→cacl2-? zn→zno→zncl2→zn(oh)2→znso4 - вопрос №270470022224 от какм1 27.09.2020 00:30

Question

Химия: Na→naoh→nacl-? ca→cao→ca(oh)2→cacl2-? zn→zno→zncl2→zn(oh)2→znso4 ?

какм1 · Answer

2Na + 2H2O = 2NaOH + H2↑NaOH + HCl = NaCl + H2OMgO + Ca = CaO + MgCaO + H2O = Ca(OH)2Ca(OH)2 + 2HCl = CaCl2 + 2H2O2Zn + O2 = 2ZnOZnO + 2HCl = ZnCl2 + H2O2NaOH + ZnCl2 = Zn(OH)2↓ + 2NaClZn(OH)2 + H2SO4 = ZnSO4 + 2H2O...