Make up the equations of possible interactions of hydrochloric acid HCL: 1) with oxides: sodium, calcium, copper (2)

Make up the equations of possible interactions of hydrochloric acid HCL: 1) with oxides: sodium, calcium, copper (2) 2) hydroxides: lithium, aluminum, copper (2) 3) salts: calcium chloride, sodium sulfide.

A reaction is considered possible if, as a result, one of the reaction products precipitates, leaves the reaction medium in the form of a gas, or water forms.

1) Hydrochloric acid reacts with metal oxides to form the corresponding salt and water.

2 HCl + Na2O = 2 NaCl + H2O

2 HCl + CaO = CaCl2 + H2O

2 HCl + CuO = CuCl2 + H2O

2) With metal hydroxides, hydrochloric acid enters into a neutralization reaction. As a result, the corresponding salts and water are formed.

HCl + LiOH = LiCl + H2O

3 HCl + Al (OH) 3 = AlCl3 + 3 H2O

2 HCl + Cu (OH) 2 = CuCl2 + 2 H2O

3) Of the salts presented, hydrochloric acid will not react with calcium chloride, because chloride is a salt of hydrochloric acid. New substances will not form.

With sodium sulfide, the reaction will occur, because as a result, hydrogen sulfide will be released in the form of gas.

2 HCl + Na2S = 2 NaCl + H2S ↑