Why does the first method for determining volume work only for a regularly sales object

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.

Displacement is the slope of a velocity vs. time graph a. true b. false

What is the atomic number of an atom that has 6 protons