In the following reaction between copper sulfate and zinc What is happening to the zinc atom? Zn + Cu*2 SO,
→ Cu + Zn+250,2

Modern weaponry has increased the number of deaths in wars and violent conflicts.

Calculate the number of molecules present in 0.750 mol of mgo.

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.