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A sample of metallic element X, combines completely with oxygen gas (O2) forming a metal oxide of formula XO. If the amount of oxygen gas used is 32 grams, and the total amount of metallic oxide formed is 112 grams, Determine the identity of the metal.

1. sodium

2. magnesium

3. calcium

4. radium

5. potassium

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Category:- Chemistry
Reference No.:- M91096901

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