Question

what happens when (report only observations) (1) a reactive metal reacts with a dilute mineral acid? (2) an amphoteric oxide reacts with sodium hydroxide solution ? (3) a metal of low reactivity is dropped in the salt solution of a metal high reactivity ? (4) a metal carbonate is treated with acid ?
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Answer 1

Answer:

1. Dilute acids react with relatively reactive metals such as magnesium, aluminium, zinc and iron. The products of the reaction are a salt plus hydrogen gas.

2. An amphoteric oxide is one which shows both acidic and basic properties.They react with sodium hydroxide to form salt  sodium sulfate.

3. If a metal of low reactivity is dropped in Salt solution of a higer reactivity matal no chemical reaction will take place.

4. When acids react with carbonates, such as calcium carbonate (found in chalk, limestone and marble), a salt, water and carbon dioxide are made.

acid + metal carbonate → salt + water + carbon dioxide

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Answer 2

Answer:

what happens when (report only observations) (1) a reactive metal reacts with a dilute mineral acid? (2) an amphoteric oxide reacts with sodium hydroxide solution ? (3) a metal of low reactivity is dropped in the salt solution of a metal high reactivity ? (4) a metal carbonate is treated with acid ?

plzz give me answer plzz fast it's a urgent worl plzz