Kcl what combination of atoms are involved in this compound? a. 1 potassium atom and 2 chlorine atoms b. 2 potassium atoms and 1 chlorine atom c. 1 potassium atom and 1 chlorine atom d. 2 potassium atoms and 2 chlorine atoms

b is the correct

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.