In a diagram of bond energy and length, why does the potential energy decrease if you start from the far right, where the atoms are very far apart, and move to the left, eventually to the ideal bond length?

Which is a characteristic of mixtures?

Which of these conditions most likely produces an unstable isotope?

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.