A.   Training in chemistry sharpens one's ability to think quantitatively, abstractly, and nanoscopically.

B.   Chemistry, because it focuses on matter, is the foundation of all areas of science

C.   Chemistry, because it focuses on matter, is the foundation of all areas of science. High performance in chemistry classes is a strong indicator of potential success in fields such as medicine. Training in chemistry sharpens one's ability to think quantitatively, abstractly, and nanoscopically.

D.   High performance in chemistry classes is a strong indicator of potential success in fields such as medicine.

A.   Coarse screening

B.   Aeration

C.   Ozonation or chlorination

D.   Treatment with slaked lime and alum

A.   It has not been contradicted by experiments, it predicts unknown results and it summarizes a wide range of experimental results.

B.   It predicts unknown results and it summarizes a wide range of experimental results.

C.   It has not been contradicted by experiments.

D.   It summarizes a wide range of experimental results.

A.   The element chlorine boils at -34.6 °C

B.   A chemical compound containing cobalt and chlorine is blue.

C.   Aluminum metal is a conductor of electricity.

D.   A chemical compound containing lead and sulfur forms shiny, plate-like, yellow crystals.

A.   Good conductor of heat; takes shape of container

B.   Conducts electricity well; compressible

C.   Compressible; brittle

D.   Has definite shape and volume; not compressible

A.   One important physical property is whether a substance is degraded by exposure to oxygen.

B.   The measurement of physical properties does not break any bonds.

C.   The measurement of physical properties always involves a phase change.

D.   Physical properties depend on the mass of the material being considered.

A.   0.942 g/mL

B.   0.862 g/mL

C.   1.16 g/mL

D.   2.32 g/mL

A.   3.330 mL

B.   83.3 mL

C.   83.25 mL

D.   0.300 mL

A.   Cellulose is not soluble in water.

B.   Dry Ice sublimes (changes directly from a solid to a gas) at -78°C.

C.   Acetylene, C2H2, burns in air to form carbon dioxide, CO2, and water, H2O.

D.   The compound C2H6O has a density of 0.789 g/mL at 20°C.

A.   color

B.   melting point

C.   density

D.   flammability

E.   atomic mass

A.   Rubbing alcohol

B.   Clean air

C.   Sugar water

D.   An asphalt (blacktop) road

A.   S8

B.   F2

C.   HF

D.   H2

A.   A sugar molecule

B.   A muscle cell

C.   A protein

D.   A xenon atom

A.   Heat flows from a body of higher temperature to one of lower temperature.

B.   Temperature can be measured in Kelvin, centigrade, or Fahrenheit degrees with equal precision.

C.   Temperature indicates the amount of heat present in the sample whose temperature was measured.

D.   Temperature is a measure of how vigorously the particles in the sample are rotating, vibrating, or moving about.

A.   Dalton

B.   Demokritos

C.   Einstein

D.   Heisenberg

E.   Bohr

A.   Hg

B.   Mg

C.   Rg

D.   Cm

A.   Conducts heat

B.   Forms alloys

C.   Has low density

D.   Is malleable

A.   Cl, N, O

B.   Ni, Ag, Au

C.   Sc, Y, La

D.   B, S, P

A.   Ba

B.   Ca

C.   Sr

D.   Cs

A.   0.76 g

B.   76 g

C.   16 g

D.   1.6 × 10–4 g

E.   0.16 g

A.   It cross-links DNA at critical locations to prevent transcription.

B.   It intercalates between base pairs to stiffen the DNA strand.

C.   It suppresses the activity of telomerase.

D.   It prevents the collapse of microtubules.