Question

[Nguyễn Thái Sơn]

1) Viet phuong trinh dien li cua cac chat sau:

a) HNO₃, Ba(OH)₂, H₂SO₄, BaCl₂, NaHCO₃

b) CuSO₄, Na₂SO₄, Fe₂(SO₄)₃, Na₂HPO₄, H₃PO₄

Answer 1

[hnamyuh]

a)

$HNO_3  → H^+ + HNO_3^-$

$Ba(OH)_2  → Ba^{2+} + 2OH^-$
$H_2SO_4  → 2H^+ + SO_4^{2-}$
$BaCl_2  → Ba^{2+} + 2Cl^-$
$NaHCO_3  →Na^+ + HCO_3^-$

b)

$CuSO_4  → Cu^{2+} + SO_4^{2-}$
$Na_2SO_4  → 2Na^+ + SO_4^{2-}$
$Fe_2(SO_4)_3  → 2Fe^{3+} + 3SO_4^{2-}$
$Na_2HPO_4  → 2Na^+ + HPO_4^-$
$H_3PO_4 ⇌ 3H^+ + PO_4^{3-}$

Answer 2

[Nguyễn Thái Sơn]

HPO₄ hoa tri II chu