напишите уравнения реакций,а потом уравняйте две части уравнения:
Zn+HC=
СuO+HCl=
NaOH+HCl=
Na2CO3+HCl=
HCl+AgNO3=
NaCl+AgNO3=
Zn + 2HCl = ZnCl2 + H2(газ)
CuO+2HCl=CuCl2+H2O
NaOH+HCl= NaCl+H2O
Na2CO3 + 2HCl = 2NaCl + H2O + CO2
HCl + AgNO3 = AgCl↓ + HNO3.
NaCl+AgNO3=AgCl+NaNO3
1)Zn + 2HCl = ZnCl2 + H2(газ)
2)CuO + 2HCl = CuCl2 + H2O
3) NaOH + HCl = NaCl + H2O
4) Na2CO3 + 2HCl = 2NaCl +H2O + CO2
5) HCl + AgNO3 = AgCl + HNO3
6) NaCl + AgNO3 = AgCl + NaNO3
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Answers & Comments
Zn + 2HCl = ZnCl2 + H2(газ)
CuO+2HCl=CuCl2+H2O
NaOH+HCl= NaCl+H2O
Na2CO3 + 2HCl = 2NaCl + H2O + CO2
HCl + AgNO3 = AgCl↓ + HNO3.
NaCl+AgNO3=AgCl+NaNO3
1)Zn + 2HCl = ZnCl2 + H2(газ)
2)CuO + 2HCl = CuCl2 + H2O
3) NaOH + HCl = NaCl + H2O
4) Na2CO3 + 2HCl = 2NaCl +H2O + CO2
5) HCl + AgNO3 = AgCl + HNO3
6) NaCl + AgNO3 = AgCl + NaNO3