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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.

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What is the percent composition of calcium oxide?

The percent composition of calcium oxide (CaO) is 71.5% calcium (Ca) and 28.5% oxygen (O).


What is the percent composition of calcium (Ca) in (CaO)?

40 g / 56 g X 100%


What is the product of Ca plus O2?

calcium + oxygen --> calcium oxide Ca + O --> CaO


What is the balanced equation of calcium oxide reacts with water to form calcium hydroxide?

how do you write a balanced chemical formula for this question CaO + H2O ---> Ca(OH)2


What is chemical symbol of calcium oxide?

'CaO' ; 1 x atom of calcium (Ca) 1 x atom of oxygen (O).


What is the balanced symbol equation for calcium oxide with water goes to hydroxide?

The balanced symbol equation for calcium oxide (CaO) with water (H2O) forming calcium hydroxide (Ca(OH)2) is: CaO + H2O → Ca(OH)2


Formula calcium oxide?

CaO ; 1 atom of Calcium (Ca) 1 atom of oxygen (O)


What is the balanced equation when calcium oxide reacts with water?

The balanced equation for the reaction between calcium oxide (CaO) and water (H2O) is: CaO + H2O -> Ca(OH)2. This reaction produces calcium hydroxide (Ca(OH)2) as the product.


What is CA O?

Ca = calcium , O = oxygen and written together like CaO it stands for calcium oxide.


What two elements make up calcium oxide CaO?

Calcium (Ca) and Oxygen (O) are the two elements that make up calcium oxide.


How many atoms are there in CaO?

Two atoms. One calcium (Ca) and one oxygen (O).


What is the balanced equation for calcium hydroxide yields calcium oxide and water?

The balanced equation for this reaction is: Ca(OH)2 --> CaO + H2O.