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Lyrx [107]
3 years ago
5

In a physical change of matter,​

Chemistry
2 answers:
lesantik [10]3 years ago
8 0
C no new substances are formed
mel-nik [20]3 years ago
5 0

Answer: C. no new substances are formed<span>
</span><span>
<span>In the physical change of matter, there is no new substance that is formed. It is only the appearance of the matter that is being changed and not its chemical composition. Cutting, tearing and grinding are only some of the examples that exhibit physical change. </span></span>

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If 6 moles of a compound produce 84 J of energy, what is the AHreaction in<br>J/mol?​
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Answer:

Explanation:

The ΔH for 6 moles is +84 J. So you just divide +84 J by 6 moles to get +14 J/mol (ΔΗreaction).

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3 years ago
The formula for sodium phosphate: NaPO4 Na(PO4)3 Na3PO4
kobusy [5.1K]

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7 0
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A light strikes the boundary of a medium at a 45 degree angle. Instead of entering the second medium, the light reflects back in
Dahasolnce [82]

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D It must be equal to 1.00

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