3. What are valence electrons? How do you quickly determine the number of valence electrons an
atom has?

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

Describe the interaction that occurs between two objects with the same electrical charge.

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.