The atomic weights of two elements A and B are 40 and 80 respectively. If x g of A contains y atoms, how many atoms are present in 2x g of B

The atomic weights of two elements A and B are 40 and 80 respectively.

1.	The atomic weights of two elements A and B are 40 and 80 respectively. If x g of A contains y atoms, how many atoms are present in 2x g of B
A.	\[\frac{y}{2}\]
B.	\[\frac{y}{4}\]
C.	y
D.	2y
Answer» D. 2y

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The atomic weights of two elements A and B are 40 and 80 respectively. If x g of A contains y atoms, how many atoms are present in 2x g of B

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