In a balanced chemical equation, how does the number of atoms of each element compare in the reactants and products?
Answer and explanation
Correct answer: Equal on both sides
A balanced chemical equation follows the law of conservation of mass. Therefore, the number of atoms of each element is equal on the reactant and product sides. For example, in \(2H_2 + O_2 \rightarrow 2H_2O\), both sides have 4 hydrogen atoms and 2 oxygen atoms. It is not enough for only the total number of atoms to match; each element must be balanced separately.
Frequently asked questions
What is the correct answer to this question?
Equal on both sides
Why is this the correct answer?
A balanced chemical equation follows the law of conservation of mass. Therefore, the number of atoms of each element is equal on the reactant and product sides. For example, in \(2H_2 + O_2 \rightarrow 2H_2O\), both sides have 4 hydrogen atoms and 2 oxygen atoms. It is not enough for only the total number of atoms to match; each element must be balanced separately.
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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