How many suns are there?

What is the molar mass of potassium nitrate, kno3

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

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.