What Chemicals including in Cosmetic?​

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution