Which of the following statements about a balanced chemical equation is incorrect?
Answer and explanation
Correct answer: Chemical formulae are changed to balance the equation.
In a balanced chemical equation, the number of atoms of each element is equal on both sides, so it follows the law of conservation of mass. Only the coefficients written before chemical formulae are changed during balancing. Changing a chemical formula changes the identity and composition of a substance; therefore, option A is incorrect.
Frequently asked questions
What is the correct answer to this question?
Chemical formulae are changed to balance the equation.
Why is this the correct answer?
In a balanced chemical equation, the number of atoms of each element is equal on both sides, so it follows the law of conservation of mass. Only the coefficients written before chemical formulae are changed during balancing. Changing a chemical formula changes the identity and composition of a substance; therefore, option A is incorrect.
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.
