(A) The correct option is $A$. $12 \ g$ of carbon combines with $32 \ g$ of oxygen to form $44 \ g$ of carbon dioxide. $12 \ g + 32 \ g = 44 \ g$. Acc

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$12 \ g$ of carbon combines with $32 \ g$ of oxygen to form $44 \ g$ of $CO_2$

(A) The correct option is $A$. $12 \ g$ of carbon combines with $32 \ g$ of oxygen to form $44 \ g$ of carbon dioxide. $12 \ g + 32 \ g = 44 \ g$. According to the law of conservation of mass,the total mass of reactants must be equal to the total mass of products.

Class 11 Chemistry Some Basic Concepts of Chemistry Laws of chemical combination

Medium

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

A
$12 \ g$ of carbon combines with $32 \ g$ of oxygen to form $44 \ g$ of $CO_2$
B
When $12 \ g$ of carbon is heated in a vacuum there is no change in mass
C
$A$ sample of air increases in volume when heated at constant pressure but its mass remains unaltered
D
The weight of a piece of platinum is the same before and after heating in air