Chlorine gas react with potassium bromide. predict the products of this reaction and their states. give an explanation for you answer. can someone explain how i get to an answer

See below.

Explanation:

Chlorine gas replaces the bromine in  potassium bromide to form potassium chloride and bromine liquid is released.

The equation for the reaction is:

Cl2 (g) + 2KBr (s) = KCl  (s) + Br2 (l).

This reaction occurs because chlorine is more reactive then bromine.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.