What does the law of conservation of mass state?
Answer and explanation
Correct answer: Mass can neither be created nor destroyed.
The law of conservation of mass states that the total mass of the reactants equals the total mass of the products in a chemical reaction. Substances may change form, but mass is neither created nor destroyed. Therefore, a chemical equation is balanced so that the number of atoms on both sides is equal. A colour change or gas formation occurs only in some reactions, not in every reaction.
Frequently asked questions
What is the correct answer to this question?
Mass can neither be created nor destroyed.
Why is this the correct answer?
The law of conservation of mass states that the total mass of the reactants equals the total mass of the products in a chemical reaction. Substances may change form, but mass is neither created nor destroyed. Therefore, a chemical equation is balanced so that the number of atoms on both sides is equal. A colour change or gas formation occurs only in some reactions, not in every reaction.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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