Which reaction occurs most rapidly at standard conditions?
h2(g) + i2(s) 2hi(g)
cu(s) + s(s) cus(s)
c6h12o6(s) + 6o2(g) 6co2(g) + 6h2o(g)
5c2o42-(aq) + 2mno4-(aq) + 16h+(aq) 10co2(g) + 2mn2+(aq) + 2h2o(l)
ag+(aq) + i-(aq) agi2(s)
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If you want to create an electrical current, which situation would produce a solution capable of this

1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /

Which of the following is not a true statement about dwarf planets? a the kuiper belt contains comets, asteroids, and dwarf planets. b ceres is a dwarf planet located in the kuiper belt. c the largest known dwarf planet in the solar system is named eris.