Question

How many oxygen atoms are there in the product: 6Ca+4PO4→2Ca3(PO4)2? A. 16 B. 2 C. 4 D. 8

Answer 1

The correct answer is option A.

Step-by-step explanation:

`6Ca+4PO_4\rightarrow 2Ca_3(PO_4)_2`

Number of molecules of
`Ca_3(PO_4)_2` =2

In 1 molecule
`Ca_3(PO_4)_2` , there are 8 oxygen atoms:

`4* 2 = 8`oxygen atoms.

Then 2 molecules of
`Ca_3(PO_4)_2` :

`2* 8 = 16` oxygen atoms.

Hence, the correct answer is option A.