Chemistry · Atoms and Molecules
With reference to atoms and molecules, which of the following statements is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1During a chemical reaction, the sum of the masses of the reactants and products changes.
- 2The molecular mass of a substance is calculated by taking the sum of the atomic masses of all the atoms in a given molecule.✓
- 3A positively charged ion is known as an anion.
- 4An atom is a divisible particle that can be created or destroyed through a chemical reaction.
Correct answer
The molecular mass of a substance is calculated by taking the sum of the atomic masses of all the atoms in a given molecule.
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