What characteristic is shared by most simple polyatomic ions? a)they are anions. b)they are bonded ionically. c)they are cations. d)they have positive charges.

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?