Calculate the molarity of 2,248g of Potassium Phosphate in 4.1L aqueous solution

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

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.

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature