How do the alkali metals differ from the alkaline earth metals? a. alkali metals are much less reactive than alkaline earth metals. b. alkali metals are much harder than the alkaline earth metals. c. alkali metals exist in pure form; alkaline earth metals appear in nature as compounds. d. alkali metals have one valence electron and alkaline earth metals have two.

Idid a lab for chemistry where we put nails in a copper (ii) chloride solution. 1. why did the reaction stop? which reactant was used up? how do you know? 2. describe what was happening to the atoms of iron and copper during the reaction. what is this type of reaction called? 3. what would happen to the ratio of copper to iron if you had placed more nails in the beaker? if you had let the reaction go for less time? 4. what is the accepted ratio of copper atoms to iron atoms in this reaction? account for differences between your experimental value and the accepted value. write the balanced equation for the reaction.