It would seem that because calcium and oxygen are in equal molar ratio for this compound that it would be 50 percent. But that is incorrect, because they each have differing molar masses. Oxygen has a molar mass of 16.000 and calcium has a molar mass of 40.078. So calcium is 40.078/56.078, which is 71.47 percent.
Ca+O=CaO
The chemical formula of calcium oxide is CaO.
Ca + 1/2 O2 => CaO, or quicklime. A more common reaction is the heating of calcium carbonate (limestone or marble) to produce oxygen and quicklime. CaCO3 => CaO +O2
Calcium (Ca) and Oxygen (O) are the two elements that make up calcium oxide.
CaO is Calcium Oxide also known as quicklime.The systematic name of this compound is Calcium Oxide.
calcium + oxygen --> calcium oxide Ca + O --> CaO
Ca = calcium , O = oxygen and written together like CaO it stands for calcium oxide.
ca+o2=cao
Ca + O = CaO.
how do you write a balanced chemical formula for this question CaO + H2O ---> Ca(OH)2
Ca+O=CaO
CaO+B2O3______Ca (BO2)2
CaO(s) + 2HCl(aq) => CaCl2(s) + H2O(l)
An ionic compound between these two ions. The cation Ca2+ The anion O2- forming the molecular compound CaO ------
40 g / 56 g X 100%
Formula: CaO
The chemical formula of calcium oxide is CaO.