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Acids and Bases react with metals to form salt and hydrogen gas.
Acid/ Base + Metals → Salt + Hydrogen Gas
Example 1 :
When Zinc (Zn) reacts with dilute Sulphuric Acid (H 2 SO 4 ), it produces a salt called Zinc Sulphate (ZnSO 4 ) and Hydrogen Gas.
Zn(s) + H 2 SO 4 (aq) → ZnSO 4 (aq) + H 2 (g)
Example 2 :
When Sodium hydroxide (NaOH, a base) is heated with Zinc (Zn, a metal),it forms Sodium Zincate (Na 2 ZnO 2 , a salt) and Hydrogen Gas (H 2 ). This hydrogen gas produces a pop sound
2NaOH (aq) +Zn (s) →Na 2 ZnO 2 (aq) + H 2 (g)
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