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uysha [10]
3 years ago
10

Please answer Will give brainlst

Mathematics
2 answers:
Rom4ik [11]3 years ago
6 0

Answer:

Step-by-step explanation:

A: not correct. You're changing phase. That's a physical change.

B: not correct. You are just changing the shape of something. That is physical as well. No electrons moving around is involved.

C: Here's your answer. Anytime you get a gas given off you can suspect that a chemical reaction has taken place.

D: Not true. A mixture formation is not a chemical reaction

Bad White [126]3 years ago
3 0

Answer:

The answer is C

Step-by-step explanation:

There are other examples but C

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Answer: The z score that corresponds to the value x=22 is 0.4 .

Step-by-step explanation:

Given : A normal distribution has a mean 20 and standard deviation 5.

i.e. \mu=20

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We know that to find the z-score corresponds to the value x is given by :-

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For x = 22, we have

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