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Lelechka [254]
3 years ago
5

7. Which of the following is true about rocks?

Chemistry
1 answer:
alex41 [277]3 years ago
4 0

Answer:

most rocks are a mixture of minerals

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radioisotope actinium 225 has half life of 10 days, I begin with 16 kg of this isotope, how much will remain after 40 days?
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Tia has a sample of pure gold (Au). She weighed the sample and the result was 35.9 grams. Tia wants to determine the number of a
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First, find moles of gold given the mass of the sample:
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4 0
4 years ago
Read 2 more answers
HELP PLEASE ITS JUST MULTIPLE CHOICE
morpeh [17]

Answer:

Atoms are indivisible

I had a hard time finding this out.

Explanation: Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties. Dalton based his theory on the law of conservation of mass and the law of constant composition. The first part of his theory states that all matter is made of atoms, which are indivisible.

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3 years ago
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