Which of the following best explains the law of conservation of mass?

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Question:
Which of the following best explains the law of conservation of mass?

1.No change in mass is observed when 2.0 g of Mg is heated in vacuum

2.1.2 g of carbon when burnt in excess if oxygen consumes only 3.2 g of it to form 4.4 g of carbon dioxide

3.12 g of carbon when heated in limited supply of air produces only 20 g of carbon monoxide

4.A sample of air in heating does not show any change in mass but volume increases.

Posted Date:-2021-09-30 17:03:25

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