Question
Asked Dec 12, 2019
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(a) Calcium and chlorine react to give calcium chloride in a combination reaction. Write and balance the equation.

(b) Heating decomposes Na2CO3 to sodium oxide and carbon dioxide. Write and balance the equation.

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Expert Answer

Step 1

A chemical reaction is symbolic representation of the conversion of substances to new substances.

In a chemical reaction; the substance which involves in conversion is said to be reactant whereas the newly formed substance is called as product. Both reactant and products must be separated by arrow.

Step 2

In a balance chemical equation, the number of atoms must be same at both sides of the equation.

Step 3

Part a)

Calcium and chlorine react to give calcium chloride in a combination reaction. The atomic symbol of calcium is Ca and for chlorine i...

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→CaCl) Ca +Cle) ,+Cl, 2(g) 2(s)

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