Question
Which of the following is the best example of the law of conservation of mass?
- Balanced reaction
- Combustion of methane
- The weight of iron before and after it gets rusted
- All the above
Hint:
The law of conservation of mass deals with the fact that in isolated conditions, reactants should always be equal to products in terms of mass.
The correct answer is: Balanced reaction
- A balanced equation is the best example of the law of conservation of mass.
- The law of conservation of mass states that mass can neither be created nor destroyed. It explains that in a chemical reaction, which is conducted under isolated conditions, the mass of reactants is equal to the mass of products.
- Since a balanced chemical reaction is the one in which the mass of compounds on the reactant side is equal to the mass of compounds on the product die, thus it is a perfect example of a law of conservation of mass.
Law of conservation of mass was given by Antoine Lavoisier.
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