What is Kb for CH3NH2(aq) + H2O(1) CH3NH3(aq) + OH (aq)?

What are the percent by mass of copper in penny lab

If 90.0 grams of ethane reacted with excess chlorine, how many grams of dicarbon hexachloride would form

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.