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Vsevolod [243]
4 years ago
14

Is Ca + O --> CaO a balanced chemical equation? Is it obeying the law of conservation of matter? Question 5 options: Yes it i

s balanced. It has the same number of Ca and O on both the reactant side and the product side. No it is not balanced. It has more Ca on the product side than the reactant side. No it is not balanced it has more O on the reactant side than the product side.
Chemistry
1 answer:
iren [92.7K]4 years ago
7 0

Answer is: Yes it is balanced. It has the same number of Ca and O on both the reactant side and the product side.

According to principle of mass conservation, number of atoms must be equal on both side of chemical reaction.

There is one calcium atom atom and one oxygen atom on both side of reaction, so chemical reaction is balanced.

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Answer: Mass of CO_2  produced in this reaction was 6.56 grams

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According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

CaCO_3(s)+2HCl(aq)\rightarrow H_2O(l)+CO_2(g)+CaCl_2(aq)

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x = 6.56 g

Thus mass of CO_2  produced in this reaction was 6.56 grams

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