РИО:
1) HCl+NaOH
2) HCl+CuO
2) HCl+CaCO3
ПОМОГИТЕ ПОЖАЛУЙСТА!
1. HCl + NaOh = NaCl + H20
2. 2HCl+CuO = H2O + CuCl2
3. HCl + CaCO3 =H2CO3+CaCl2
1) HCl + NaOH = NaCl + H20 2) 2HCl+CuO = H2O + CuCl2 3) 2HCl + CaCO3 =H2CO3+CaCl2