How does matter would cycle through the spheres

Because we use the water and other people use it and things. So it spreads around the earth

Since there is the same amount of agn03 in both silver chloride and silver nitrate they produce the same amount of moles. therefore silver chloride produces the same amount of silver nitrate, so your answer is 15.0 moles of silver nitrate. i hope this !

Matter- occupies space and possesses rest massno matter is the opposite