what happen when first. Aluminium metal react with dilute HCl? second. potassium oxide is dissolved in water? third. sodium hydroxide react with sulphuric acid completely? give equation for the chemical reaction involved
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Explanation:
In the first reaction , Hydrogen gas (H₂↑) is evolved . In the second reaction , Oxygen gas (O₂↑) is evolved . In the third reaction , Sodium hydroxide neutralizes Sulphuric acid .
1) 2 Al + 6 HCl → 2 AlCl₃ + 3 H₂↑
2) 4 KO + 2 H₂O → 4 KOH + O₂↑
3) 2 NaOH + H₂SO₄ → Na₂SO₄ + 2 H₂O
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