Question

you are given samples of Na, Mg, and Cu. suggest two activities to arrange them in order of decreasing order
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Answer 1

Answer:

Explanation:

Reaction of sodium magnesium and copper with oxygen-: Sodium reacts readily with oxygen and burns in air. Magnesium reacts with oxygen only on heating And copper reacts with oxygen only on strong heating. This shows that copper is least reactive magnesium is more reactive as compared to Copper. And sodium is the most reactive among the three. Reaction of sodium magnesium and copper with water-: Sodium reacts readily with water. Magnesium reacts only with hot or boiling water. Copper does not even react with hot water This activity also shows that Copper is the least reactive among them and sodium is the most reactive among them. ie. Copper