Question

completeaza si egaleaza ecuatiile reactiilor de mai jos:
a) NaOH+?⇒Na2SO4+?
b)Cu(OH)2+?⇒CuSO4+?
c)?+CuSO4⇒Cu(OH)2+?
d)?+CO2⇒Na2CO3+?
e)Cu(OH)2⇒?+?
f)?+HCl=AlCl3+H2O
g)Al2(SO4)3+?=Al(OH)3+?

Answer 1

a) 2NaOH+H₂SO₄=Na₂SO₄+2H₂O
b) Cu(OH)₂+H₂SO₄=CuSO₄+2H₂O
c) 2NaOH+CuSO₄=Cu(OH)₂+Na₂SO₄
d) 2NaOH+CO₂=Na₂CO₃+H₂O