A water sample contains 0.1 M of Pb2+ and 0.1 M of Th4+ ions; when a solution of IO3– is slowly added to this sample, which of the ions will precipitate first and why?

Ksp Pb(IO3)2 = 2.5 × 10–13 and Ksp Th(IO3)4 = 2.4 × 10–15.

What is the empirical formula of vanadium 1 oxide given that 20.38 grams of vandium combines with oxygen to form 23.58 grams of the oxide

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.