2.7 An Introduction to the Periodic Table
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In a room where chemistry is taught or practiced, a chart called the periodic tablEff,
is almost certain to be found hanging on the wall. This chart shows all the known:
elements and gives a good dea
South Pasadena 0 AP Chemistry
15 0 Chemical Kinetics
1. Which of the following does NOT inuence
the speed of a chemical reaction?
a) concentration of reactants
b) nature of reactants
presence of a catalyst
@ one of these
2. What would cau
Chapter 3 Exercises
1) How many hydrogen atoms are present in 25.6 g of urea, (NH 2)2CO?
2) Calculate the percent composition by mass for phosphoric acid
3) Vitamin C is 40.92 g C, 4.58 g H, 54.50 g O, determine its empirical form.
4) Bornite (Cu3FeS3) is