Which of the following is the best example of the law of conservation of mass ........

General Science (Easy) Chemistry

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Which of the following is the best example of the law of conservation of mass?

When 12 gm of carbon is heated in vacuum, there is no change in mass

Weight of platinum wire is the same before and after heating

A sample of air increases in volume when heated at constant pressure but mass remains unchanged

12 gm of carbon combines with 32 gm of oxygen to give 44 gm of carbondioxide

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Explanation:

When 12 gm of carbon is heated in vacuum, there is no change in mass

The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it first reacted.