Calculate the percentage composition of oxygen in calcium trioxocarbonate(IV) [Ca=40, C=12, O=16] by Sunday | Sep 14 | Chemistry JAMB | 0 comments A. 16 B. 48 C. 40 D. 12 Correct Answer: Option B – 48 Users Also Read These:What is the percentage by weight of calcium in…Calculate the percentage by mass of nitrogen in…2H2 + O2 → 2H2O: From this equation; calculate the…The separation of a mixture of calcium…A calcium atom and a calcium ion have the same?