the following substances are placed together in an aqueous solution, write the molecular, ionic and net ionic equations for each. a)(NH4)3PO4 and CuCl2 b)MgBr2 and CaSO4

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?