Balance the reactions which form ions. choose "blank" if no other coefficient is needed. writing the symbol implies "1." 1) (nh4)2co3 nh4 + + co3 -2 2) pbi2 pb+2 + i+1 3) (nh4)3po4 nh4 + + po4 +3

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

Rank the following four acids in order of increasing bronsted acidity : h2f+ , ch3oh, (ch3)2oh+ , ch3sh2+

Chromium(iii) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. the oxidation state of chromium in this compound is , and the chemical formula of the compound is ( ) . reset next