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dlinn [17]
3 years ago
7

Which choice describes a population? A. all the gray squirrels that live in a forest B. a nonliving factor in an organism's envi

ronment C. an area characterized by a group of plants and animals D. all the organisms that interact in a lake
Chemistry
1 answer:
goldenfox [79]3 years ago
5 0
I believe D. because all the organisms that live in a lake can be a bunch of living things that would be considered a population and not a species. I canceled out B. from the get go because, I don’t believe non living organisms can be in a population ?

Please get back to me if I’m right or wrong :)
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Which of the following reactions Shows a chemical change producing a gas? APEX
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Answer:2CH_3OH(l)+3O_2(g)\rightarrow2CO_2(g)+4H_2O(l)

Explanation: A chemical change is a reaction in which chemical composition of the substance changes. Some bonds are broken and some new bonds are formed.

The reactants are written in terms of their chemical formula on the left hand side and the products are written in terms of their chemical formula on right hand side with a arrow in between. The chemical symbols are followed by their physical states such as (l) for liquid, (s) for solid, (g) for gas and (aq) for aqueous.

Thus the only reaction producing a gas is 2CH_3OH(l)+3O_2(g)\rightarrow2CO_2(g)+4H_2O(l)

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