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According to the law of conservation of mass, three atoms of calcium can react to produce six atoms of calcium.
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According to the law of conservation of mass, three atoms of calcium can react to produce six atoms of calcium.

User Flooooo
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The law states that the total mass before a chemical reaction is the same as the total mass after a chemical reactionExothermic reactions do not require any activation energy.
User Abhishek Maurya
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Answer:

According to the law of conservation of mass, the masses of the products and reactants must be the same. Adding calcium to the product side is considered a mistake if it is not in the reactant side of a particular chemical equation because it is impossible to produce calcium from thin air (unless this is a nuclear reaction).

Step-by-step explanation:

User Stmatengss
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