What is the main reason for keeping atoms of every element equal on both sides of a balanced equation?
Answer and explanation
Correct answer: To follow conservation of mass
A balanced chemical equation represents the law of conservation of mass. In an ordinary chemical reaction, atoms are neither created nor destroyed; they are only rearranged to form new substances. Therefore, each element must have the same number of atoms on the reactant and product sides. Balancing does not mean that colour or heat must remain unchanged, and it does not prevent gas formation. Hence option A is correct.
Frequently asked questions
What is the correct answer to this question?
To follow conservation of mass
Why is this the correct answer?
A balanced chemical equation represents the law of conservation of mass. In an ordinary chemical reaction, atoms are neither created nor destroyed; they are only rearranged to form new substances. Therefore, each element must have the same number of atoms on the reactant and product sides. Balancing does not mean that colour or heat must remain unchanged, and it does not prevent gas formation. Hence option A is correct.
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.
