what is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696g​

Which best describes how johannes kepler developed his laws of planetary motion

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’s the theoretical yield of solid lead