Chapter 10 concepts quiz

Doping Se with B would produce a(n) __________ semiconductor with __________ conductivity compared to pure Se.

• n-type, increased

• intrinsic, identical

• p-type, increased

• n-type, decreased

• p-type, decreased

What is responsible for capillary action, a property of liquids?

• adhesive forces

• surface tension

• viscosity

• two of these

• cohesive forces

Shown below is a phase diagram for compound Y.

How will the melting point of Y change with increased pressure?

• not enough information given

• remain the same

• decrease

• Increase and then decrease

• increase

Order the intermolecular forces (dipole-dipole, London dispersion, ionic, and hydrogen-bonding) from weakest to strongest .

• dipole-dipole, ionic, London dispersion, and hydrogen-bonding

• London dispersion, ionic, dipole-dipole, and hydrogen-bonding

• London dispersion, dipole-dipole, hydrogen-bonding, and ionic

• dipole-dipole, London dispersion, ionic, and hydrogen-bonding

• hydrogen-bonding, dipole-dipole, London dispersion, and ionic

Tags

NGSS.HS-PS1-3

Which of the following is the correct order of boiling points for KNO₃, CH₃OH, C₂H₆, Ne?

• Ne < C₂H₆ < KNO₃ < CH₃OH

• Ne < C₂H₆ < CH₃OH < KNO₃

• C₂H₆ < Ne < CH₃OH < KNO₃

• Ne < CH₃OH < C₂H₆ < KNO₃

• KNO₃ < CH₃OH < C₂H₆ < Ne

Tags

NGSS.HS-PS1-3

You are given the following boiling point data. Which one of the liquids would you expect to have the highest vapor pressure at room temperature?

• diethyl ether, CH₃CH₂–O–CH₂CH₃      34.5°C

• ethanol, CH₃CH₂OH                78.5°C

• ethylene glycol, HO–CH₂–CH₂–OH     198°C

• methanol, CH₃OH                 64.96°C

• water, H₂O                         100°C

Below is a phase diagram for compound Y. The normal melting point of Y is most likely:

• 18°C

• 63°C

• 21°C

• 0°C

• 47°C

Tags

NGSS.HS-PS3-4

Which of the following substances would you expect to have the lowest boiling point?

• copper

• diamond

• sodium nitrate, NaNO₃

• glycerine, C₃H₅(OH)₃

• methane, CH₄

Steel is considered to be a(n) __________.

• ionic solid

• interstitial alloy

• molecular solid

• two of these

• substitutional alloy

A solid crystal of NaCl is

• soft, high melting, a poor electrical conductor

• hard, high melting, a poor electrical conductor

• soft, low melting, a good electrical conductor

• soft, low melting, a poor electrical conductor

• hard, high melting, a good electrical conductor

Tags

NGSS.HS-PS1-3