Question

Напишите уравнение реакций:
Ca+H2SO4->
Na+HCl- ->
Na+H2SO4->
K+H2O- - ->

Answer 1

Ca+H2SO4 = CaSO4+H2

Na + 2 HCl = 2 NaCl+H2

2 Na+H2SO4 = Na2SO4+H2

2 +H2O = 2 KOH+H2