A nugget of gold displaces 0.950 cm^3 of water. If a jeweler offers $8.00/g for the nugget, how much money is the nugget worth? (density of gold = 19.3 g/cm^3)

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

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?