Cracking the SAT Chemistry Subject Test

102. ...

Question Type C To the correct number of significant figures, what is the mass of 2.5 moles deuterium gas ...

Summary Be sure to exercise proper safety procedures at all times. Make sure that all measurements are m ...

Part III Drill Answers and Explanations ...

CHAPTER 3 SOME BASIC STUFF Drill 1 A If you chose “mass” or “density” just because those words ...

expandable and compressible. Changing the amount of a substance will not raise its temperature (B). By rememb ...

or false. What does the statement mean? For a bigger piece of some substance, the relationship between m ...

Object A has twice the density, so it should have twice the mass of an equal volume of object B. That’s ...

CHAPTER 4 ATOMS: THE BUILDING BLOCKS OF MATTER Drill 1 A Helium is an element, and the smallest pie ...

neutrons. Different atoms of the same element may vary as to the number of neutrons they contain. That’s ...

CHAPTER 5 CHEMICAL REACTIONS AND STOICHIOMETRY Drill 1 D A diatomic molecule consists of two ato ...

amu) = 80 amu. Oxygen’s percent, by mass, is × 100% or 60%. (C) is correct. T, F Divide ...

atomic weight is 40 amu, nitrogen’s is 14 amu, and oxygen’s is 16 amu. That means the formula weight = ...

in which energy is consumed—can proceed spontaneously if it’s accompanied by a large enough increase in ent ...

front of H 2 O gives us 4 oxygen atoms on the right. However, now we cannot balance carbon without upsetting ...

CHAPTER 6 ELECTRON CONFIGURATIONS AND RADIOACTIVITY Drill 1 B You may be tempted to pick (E), but don’ ...

outermost shell. Now look at the second statement. Is it true or false? It’s true: Atoms with 8 electr ...

T, F The first statement correctly lists three types of radioactive decay. However, radioactive nuclei d ...

CHAPTER 7 THE PERIODIC TABLE AND BONDING Drill 1 B Remember that the group 2A elements are alkal ...

fill in CE oval. T, F Consider statement I. Does potassium have greater metallic character than ...