Question

Помогите с переходом СРОЧНО

Answer 1

2Сa + O2 = 2CaO

CaO + H2O = Ca(OH)2

Ca(OH)2 + 2HNO3 = Ca(NO3)2 + 2H2O

Answer 2

1. 2Ca+O2=2CaO 2. Ca(OH)2 3. Ca(OH)2+HNO3=Ca(NO3)2+H2O