1. One third of the elements are classified as 1) nonmetals
2) metals
3) metalliods
4) noble gases

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

Ablock of aluminum is dropped into a graduated cylinder with an initial volume of water at 75ml and the volumes rises to 90ml. if the block has a mass of 40.5 g what is its density ?

Which molecules are more strongly attracted to one another -c3h8o molecules that make up liquid rubbing alcohol or ch4 molecules that make up methane gas