Question

Ca+S=....Mg(NO3)2+Fe=.... HCl+Ni=... Ag+HNO3=NO.... Cu+Cl2=.... Ba+N2O=...

Answer 1

Ca+S=CaS

Cu+Cl2=CuCl2

Answer 2

Chemical Reactions

Ca + S = Ca + S = CaS

Mg(NO3)2 + Fe = Mg + HNO3 = Mg(NO3)2 + N2O

[[1]](https://pnu.edu.ru/media/filer_public/1e/03/1e032ed6-4aa9-4dd5-8fa4-2502baef0caa/panasuk_mnogovar_zadachi.pdf)

HCl + Ni = NiO + 2 HNO3 = Ni(NO3)2 + H2O

[[3]](https://inmt.urfu.ru/fileadmin/user_upload/site_15053/zaochno/Departament_metallurgii_osn_stranica/KHimija/KHimija._Uchebnoe_posobie..pdf)

Ag + HNO3 = Ag + HNO3 = NO3(-) + Ag(+)

Cu + Cl2 = Cu + Cl2 = CuCl2

Ba + N2O = Ba + N2O = Ba(NO3)2