Question

Cân bằng PTHH

1, Mg +... => MgO

2, Cu+...=> CuCl₂

3, Al + O_{2=> ....}

4, ... + O_2=> Na₂O

5, SO₂+...=> SO₂

6, KOH +FeCl₃ => Fe(OH)₃ +KCl

7, Na₂O + HCl => NaCl + ...

8, Al + H₂SO₄ => Al₂ (SO₄)_{3 + ....}

_{Giúp mình nha hôm nay mik cần gấp huhu!}

Answer 1

1, 2Mg + O2 => 2MgO

2, Cu + Cl2=> CuCl2

3, 2Al + 3O2=> 2Al2O3

4, 4Na + O2=> 2Na2O

5, 2SO2+ O2 => 2SO3

6, 3KOH +FeCl3 => Fe(OH)3 +3KCl

7, Na2O + 2HCl => 2NaCl + H2O

8, 2Al + 3H2SO4 => Al2 (SO4)3 + 3H2

Answer 2

1, 2Mg + O₂ → 2MgO

2, Cu + Cl₂ → CuCl₂

3, 4Al + 3O₂ → 2Al₂O₃

4, 4Na + O₂ → 2Na₂O

5, 2SO₂ + O₂ → 2SO₃

6, 3KOH + FeCl₃ → 3KCl + Fe(OH)₃

7, Na₂O + 2HCl → 2NaCl + H₂O

8, 2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂