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Anton [14]
3 years ago
15

which idea did john dalton include in his atomic theory? a. all atoms are the same size. b. atoms of the same element are identi

cal. c. each atom has a dense, positive nucleus. d. atoms can gain or lose electrons to become ions.
Chemistry
1 answer:
lapo4ka [179]3 years ago
5 0
It might be c, because he came up with the plum pudding model.  or it might be that atoms of the same element are identical, but that's not true cuz ions are different and isotopes are different.
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<h2>Answer:</h2>

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<h2>Explanation:</h2>

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Which physical change is endothermic?
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In option 2, 3 and 4:

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Anastaziya [24]

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162.7miles/hr

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Speed is a physical quantity.

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8 0
3 years ago
Answer Quick
kow [346]

Answer:

20.9%

Explanation:

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3 years ago
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