Suggest a likely pH for a reasonably concentrated solution of hydrogen astatide in water

Select the most likely product for this reaction: koh(aq) + co2(g) – ? k2co3(aq) + h2o(1) k(s) + h2(g) + o2(g) k(s) + co3(9) +h2

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?