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3 years ago

True or False: A chemical reaction always happens when two substances are combined. (please help fast this is a test)

Physics

2 answers:

mina [271]3 years ago

8 0

Answer:probably false

Explanation:

Every time you mix two substances it doesn’t mean it’s going to have a reaction, they have to be two substances that don’t combine. I really hope this helps

Makovka662 [10]3 years ago

6 0

Answer:

no not always sometimes they react at all so false I hope I helped :)

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Answer:

Part A:

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Part B:

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Answer : The number of molecules of A needed to make 5000 molecules of AB will be, 5000

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So, 5000 molecule of AB produced from 5000 molecule of A

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