Juana wraps two thermometers in paper towels. She dips one in vegetable oil. She dips the other in water. She dries both in front of a fan for 10 min. She writes down the temperature of each thermometer every minute for 10 min. The graph below shows her results. ​

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Silver reacts with oxygen to produce silver oxide. (write balanced chemical equation and identify type of chemical reaction.)