When a covalent or an ionic bond is formed a chemical change has occurred. Which of these is not associated with a chemical change?

A) The atoms of the substance produced have been rearranged.

B) The substances produced are identical to the substances that reacted except that they're isomers.

C) The total mass of the reacting substances is the same as the total mass of the substance produced by the reaction.

D) The chemical properties of the substances produced by the reaction are different from those of the reacting substances.

Question

Physics

Lydia Osborne

7 November, 10:07

When a covalent or an ionic bond is formed a chemical change has occurred. Which of these is not associated with a chemical change?

A) The atoms of the substance produced have been rearranged.

B) The substances produced are identical to the substances that reacted except that they're isomers.

C) The total mass of the reacting substances is the same as the total mass of the substance produced by the reaction.

D) The chemical properties of the substances produced by the reaction are different from those of the reacting substances.

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Answers (1)

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Smarty · Answer 1

The answer is B). The total mass and the atom numbers of reacts and products are the same in the reaction. But that does not mean the production are identical to the reactants.