What mass of sodiumtrioxocarbonate(iv) is needed to prepare 1 dm³ of a 0.3 mole solution

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

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.

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory