What is the equation for the acid dissociation constant, of HF? K g HF(aq)+H 2 O(l) rightleftharpoons H 3 O^ + (aq)+F(aq) O . K o = [HF][H 2 O] [H 3 O^ + ][F] K 0 = [H 3 O^ + ][F] [HF] OC 1 K 0 = [HF] [H 3 O^ + ][F] 0.0,k 0 = [H 3 O^ + ][F^ prime ] [HF][H 2 O]

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible?

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 of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green