How are the arteries lead from your heart to your lungs different from the other arteries in your body

This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.