What did John Dalton contribute to the understanding of the atom?

1 answer:

6 0

Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.

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The Mass of the paper before being bumed is 50% how much mass should there be after

neonofarm [45]

Explanation:

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Which of the answer choices best describes elements?

lianna [129]

It can be a compound or a single element. An element is a pure substance that cannot be separated into simpler substances by chemical or physical means. There are about 117 elements, butcarbon, hydrogen, nitrogen and oxygen are only a few that make up the largest portion of Earth.

I would say d.

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What is mass when density is 9.51 and volume is 9.26

zlopas [31]

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Nutka1998 [239]

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Hope this helps!

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11. To make sure that your guests don't get food poisoning at Thanksgiving dinner, you decide to use a pop-up

ohaa [14]

Answer:

Do not use this exact photo please!

Explanation:

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