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Q.

Is it true that 2Mg + O2    2MgO is a balanced chemical equation?

 

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a

True

b

False

answer is A.

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Detailed Solution

The given statement is true.

When magnesium ribbon burns with a dazzling flame and changes into a white powder. This powder is magnesium oxide. It is formed due to a reaction between magnesium and oxygen present in the air. It can be written in a balanced equation as:

2Mg +O22MgO 

The number of atoms of elements on both sides is equal.

 

 

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