Question

Dalton suggested that atoms were indestructible and unchangeable to explain:

• A. why mass is conserved in chemical reactions.
• B. why elements combine in fixed weight ratios to form compounds.
• C. why elements are characterized by the mass of their atoms.
• D. why compounds combine in fixed weight ratios in chemical reactions.

Answer 1

The correct option is A why mass is conserved in chemical reactions.

Atoms cannot be subdivided, created or destroyed into smaller particles when they are combined,separated or rearranged in chemical reactions. The whole matter remains conserved in the form of reactants changing to products.