11.2

1.)

a)  I think think this name is appropriate because it really doesn't do anything to help the reaction it just watches the other elements try to react.

b) Silver is oxidized and magnesium was reduced

2.)    They will react only if element y is higher on table j than table x

3.)

a.) An activity series is the ability of an element to lose electrons

b) This is able to predict that metals will be high on table j and non-metals will be low on table J

4.)

Gold and the other 4 elements were found pure because they aren't very reactive and if they don't react with anything they are found pure.

5.)   Copper and Tin were melted together to form bronze