Multiple Choice 1.   The equation 2NO2↔N2O4 shows a system  (1 point) in chemical equilibrium. in physical equilibrium. that does not reach equilibrium. that does not change. 2.   If an endothermic reaction is in equilibrium, what will happen when you increase the temperature?  (1 point) More reactants form. More products form. No change in the amounts of products or reactants occurs. The system does not reach equilibrium again. 3.   One way to determine the degree of saturation of a solid-liquid solution is to drop a crystal of the solute into the solution. If the crystal sits at the bottom of the container, the solution is  (1 point) saturated. unsaturated. supersaturated. concentrated. 4.   To calculate the molarity of a solution, you need to know the moles of solute and the  (1 point) volume of the solvent. volume of the solution. mass of the solution. volume of the solute. 5.   Which of the following foods would NOT taste acidic?  (1 point) lime tomato orange celery 6.   A base is defined as a compound that produces  (1 point) hydroxide ions in solution. hydrogen ions in solution. hydronium ions in solution. sodium ions in solution. 7.   The salt that is formed during the reaction between potassium hydroxide and hydrochloric acid is  (1 point) NaCl. H2O. KCl. K2Cl. 8.   An acid can be defined as  (1 point) a proton acceptor. a proton donor. neither a proton donor nor a proton acceptor. both a proton donor and a proton acceptor. Fill in the Blank 9.   A substance dissolves in water by breaking up into smaller pieces. These pieces of the same substance spread throughout the water. This process is known as ____________________.  (1 point) 10.   Stirring increases the rate of solution of a solid in a liquid because solute particles in solution are moved _____________ the surface of the solid.  (1 point)