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Which of the following is best example of law of conservation of mass? A 12 gm of carbon combines with 32 gm of oxygen to form 44 gm of CO2 B when 12 gm of carbon is heated in vacuum there is no change in massC A sample of air increases in volume when heated at constant pressure but its mass remain unaltered D the weight of a piece of platinum is the same before and after heating the air

Which of the following is best example of law of conservation of mass? A 12 gm of carbon combines with 32 gm of oxygen to form 44 gm of CO2 B when 12 gm of carbon is heated in vacuum there is no change in massC A sample of air increases in volume when heated at constant pressure but its mass remain unaltered D the weight of a piece of platinum is the same before and after heating the air

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