Which best compares 1 mol of sodium chloride to 1 mol of aluminum chloride?
Both have the same molar mass.
Both have the same number of ions.
• Both are made up of 6.02 x 1023 molecules.
O Both are made up of 6.02 x 1023 formula units.

Both are made up of 6.02 x 10^23 formula units.

Explanation:

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.