Please answer the 2 questions below: According to the law of multiple proportion

Question

Please answer the 2 questions below:

According to the law of multiple proportions: if the same two elements form two different compounds, they do so in the same ratio. the ratio of the masses of the elements in a compound is always the same. the total mass after a chemical change is the same as before the change. none of these Which one of the following is false? The electrons occupy a very large volume compared to the nucleus. Almost all of the mass of the atom is concentrated in the nucleus. The protons and neutrons in the nucleus are very tightly packed. The number of protons and neutrons is always the same in a neutral atom.

Explanation / Answer

18. if the same two compounds form different compounds,they do it in the same ratio

19. the number of protons and neutrons is always same in a neutral atom,this is false because protons and electrons are same in the neutral atom

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