Given that sodium chloride is 39.0% sodium by mass, how many grams of sodium chloride are needed to have 950.mg of na present?

How does velocity and mass affect momentum?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.