Answer :
The correct answer is BaO(s)+ CO2(g).
Barium carbonate is BaCO3(s)
BaCO3(s)------> BaO(s) + CO2(g)
Number of atoms on reactant side
Ba=1
C=1
O=3
Number of atoms on product side
Ba=1
C=1
O=1+2=3
Hence the equation is balanced.
So the balanced reaction is :
BaCO3(s)-------> BaO(s)+ CO2(g).
What is Thermal decomposition?
In this reaction, the reactants first undergo reduction, then oxidation. When something is oxidized, oxygen is added, hydrogen is taken out, or electrons are lost. When something is reduced, hydrogen is added, oxygen is removed, or electrons are gained. Electromotive force is referred to as emf.
One kind of chemical reaction is the heat degradation process. The decomposition of the reactants is what causes the thermal decomposition in this kind of thermal decomposition reaction, which results in products.
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