which among the following contains 12 atoms of oxygen ?

Question

which among the following contains 12 atoms of oxygen ?

which among the following contains 12 atoms of oxygen ?
A. 6 molecules of calcium oxide
B. 6 molecules of water
C. 3 molecules of sodium bicarbonate
D. 4 molecules of calcium carbonate

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

D. 4 molecules of calcium carbonate.

Because 4 CaCO₃.

Since each molecule of CaCO₃ contains 3 atoms of Oxygen.

Therfore 4 molecults of CaCO₃contains 4x3 =12 atoms.

6 views Answered 2023-02-05 15:29