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Why did Dalton believe that atoms were indestructible and unchangeable?

A) During chemical reactions, molecules combine in fixed mass ratios.

B) Atoms combine in fixed mass ratios to create molecules.

C) During chemical reactions, total mass remains the same.

D) Elements are identified by the mass of their atoms.

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C) During chemical reaction, total mass remains the same.

This is because due to the law of conservation of mass, stating that in a chemical reaction, neither mass will be created nor destroyed. So, the total mass will not change when chemical reactions occur.

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