What is the Ke of the 20 gram shoe as it falls to the ground at 6 m/s? PLEASE HELP ITS 7TH GRADE SCIENCE!!!

Sulfuric acid is a polyprotic acid. write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when it's dissolved in water.

The fact that the total amount of energy in a system remains constant is a(n)

If it is an isoelectronic series select true, if not select false. o2-, s2-, se2-, te2- na+, k+, rb+, cs+ n3-, p3-, as3-, sb3- ag, cd+, sn3+, sb4+ f-, cl-, br-, i- f-, ne, na+, mg2+ s2-, s, s6+