ПОМОГИТЕ ХИМИЧ 8 КЛАСС

Question

СРОЧНО РЕБЯТА

mail_mamishev · Accepted Answer

5)  Ca+2H2O →Ca(OH)2+H2↑
      Ca(OH)2+ 2HCl →CaCl2+2H2O
      Ca(OH)2+CO2→ CaCO3+ H2O
         CaO+H2O→Ca(OH)2
          CaO +2HNO3→Ca(NO3)2+H2O

ququ_1 · Answer

1 и 4 +H2O; 2 +HCl; 3 +CO2; 5 +HNO3