1. 3
2. 4
3.1.
4.4.
5.3
6.3.
7.1.
8.1.
9.4
BaO + SO3 = BaSO<span>4
</span>BaO + 2 HCl = BaCl2 + H2O
BaO + H2O = Ba(OH)<span>2
</span>
2Na + 2H2O = 2NaOH + H2
46г 22.4л
92г х
х = 92*22,4/46 = 44,8 л
2Al + 6HCl = 2AlCl₃ + 3H₂
2Al + 6H⁺ = 2Al⁺³ + 3H₂
Fe₂O₃ + 6HNO₃ = 2Fe(NO₃)₃ + 3H₂O
Fe₂O₃ + 6H⁺ = 2Fe⁺³ + 3H₂O
Al₂O₃ + 3H₂SO₄ = Al₂(SO₄)₃ + 3H₂O
Al₂O₃ + 6H⁺ = 2Al⁺³ + 3H₂O