Chemistry, 20.07.2019 00:20 iloveballet1857
Identify the catalyst-containing systems below as homogeneous or heterogeneous. catalysts (4 items) (drag and drop into the appropriate area below) no(g) for the oxidation of so2(g) to so3(g)ki(aq) for the decomposition of h2o2(aq)h2(g) bonded to a metal surfacepd(s) coating that converts noxious gas to less harmful gases
Answers: 2
Chemistry, 22.06.2019 04:30, rosetoheart2
What are the three major branches of natural science? • earth and space science, life science, physical science •earth and space science, physical science, chemistry •physical science, life science, chemistry •life science, chemistry, physics
Answers: 1
Chemistry, 22.06.2019 05:00, Angelanova69134
Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.
Answers: 2
Chemistry, 22.06.2019 11:40, Wemaybewrong
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Identify the catalyst-containing systems below as homogeneous or heterogeneous. catalysts (4 items)...
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