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:2H2 + O2 → 2H2O: From this equation; calculate the…In the electrolytic extraction of calcium from…A sample of hard water contains some calcium…Equal masses of calcium trioxocarbonate(iv) were…A calcium atom and a calcium ion have the same?