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Likurg_2 [28]
3 years ago
15

Which statement is correct?

Chemistry
1 answer:
rosijanka [135]3 years ago
4 0

Answer:

B. Chemical changes produce new substances; physical changes do not.

Explanation:

Physical changes only alter appearances, while chemical changes are interactions that create new chemical formulas.

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statuscvo [17]

Answer: B

Explanation:

To find the amount of heat required, you would use q=mcΔT.

q=2g(4.18J/g°C)(68-34°C)

q=284.2 J

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4 0
3 years ago
What is the correct answer?!????
ddd [48]

Answer:

B

Explanation:

Dalton worked with mainly about the chemistry of atoms.

how do atoms combine to form various molecules.

—rather than the details of the physical, internal structure of atoms, although he never denied the possibility of atoms' having a substructure.

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4 years ago
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I hope that you can understand this!!! Lol

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3 0
3 years ago
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Aleksandr-060686 [28]

Answer:

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When two magnets stay together they are being attracted. If they are pushing each other away, they are being repelled.

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