In the solvation of a salt, the following enthalpy changes were observed: What force contributed most to the net energetic change during this reaction?

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With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals

Which words or phrases identify layers of groundwater? check all that apply. water table kettle lake saturation zone underground lake sinkhole will give brainiest, answer quickly.

Stoichiometry- i need with 14 and 15! an explanation would be appreciated!