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Murrr4er [49]
3 years ago
7

At each step, a dichotomous key involves how many choices

Chemistry
2 answers:
kvasek [131]3 years ago
8 0
Two, hope this helps
GaryK [48]3 years ago
6 0

Two is the correct answer :3


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In each case, decide if the change is a "chemical change" or a "physical change". a) A cup of household bleach changes the color
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Explanation:

A chemical change leads to the formation of a new substance and is not easily reversible. A physical change does not lead to the formation of a new substance and is easily reversible. Physical changes include condensation, melting,etc while a chemical change is a chemical reaction.

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Elena L [17]
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