Ca3(po4)2 + h2so4 → caso4 + h3po4 balance this reaction if necessary

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 is the percentage of hydrogen in nitrogen trihydride

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?