Answer:c
Explanation: just took the test
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ANSWER:
An electrically charged atom is an ion.
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Because of the characteristic of catalyst. The catalyst is used to accelerate the reaction rate and will not participate the reaction itself. The catalyst can not be changed or consumed during the reaction. So it does not need to be replaced.
Answer:
or ghettoise, verb. (transitive) to confine or restrict to a particular area, activity, or category.
The higher animals in the food chain would probably not survive.