According to the periodic table, which of the following series of elements is ordered according to decreasing reactivity? f Mg, Si, Cs, He g Cs, Mg, Si, He h He, Cs, Si, Mg j Si, He, Cs, Mg

What are the percent by mass of copper in penny lab

14. complete and balance the equations for the single displacement reactions. a. zn + pb(no3)2 -> b. al + niso4 -> 15. complete and balance the equations for the double displacement reactions. a. agno3(aq) + nacl(aq) -> b. mg(no3)2(aq) + koh(aq) -> 16. complete and balance the equations for the combustion reactions. a. __ ch4 + o2 -> b. __ c3h6 + o2 -> c. + o2 ->

Which actions would increase the rate at salt dissolves in water? stir the water? crush the salt? use less water? heat the water? cool the salt