Consider a specific chemical reaction represented by the equation aa + bb → cc + dd. in this equation the letters a, b, c, and d represent chemicals, and the letters a, b, c, and d represent coefficients in the balanced equation. how many possible values are there for the quantity "c"?

The answer to your question is:  c = a + b - d

Explanation:

                           aA  +   bB   →   cC   +   dD

c  could have any number from 1 to the number necessary in order that the

    equation be balanced.

        For example

                                 c + d = a + b

                                 c = a + b - d        

If a = 1; b = 3   and d = 2

then                        c = 1 + 3 - 2

                              c = 2,

etc.              

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explanation:

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plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.