Question

СaC2->Ca(OH)2->CaCl2->Ca->Ca3p2

Answer 1

1)CaC2+H2O=C2H2+Ca(OH)2;

2)Ca(OH)2+HCL=CaCl2+H20;

3)CaCl2+2K=Ca+2KCl;

4)3Ca+2P(красн)=Ca3P2