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.              

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.