Regents Review 1- Matter & Energy

Which chemistry concept is false?

• Temperature is a measure of the average kinetic energy of particles.

• Heat transfers from lower to higher temperatures.

• Solid particles have less kinetic energy than gaseous particles.

• Potential energy is energy stored within particles.

Which chemistry concept about the Kinetic Molecular Theory (for an ideal gas) is false?

• There are attractive forces between gas particles.

• The particles move in straight-line paths.

• The collisions between the particles transfers energy, but the total energy remains the same.

• The volume of the gas particles is negligible compared with the total volume of the gas.

Which chemistry concept is false?

• During a phase change, potential energy changes.

• During a phase change, kinetic energy remains the same.

• During a phase change, temperature remains the same.

• During a phase change, potential energy remains the same.

Which chemistry concept is false?

• Sublimation changes from solid to gas.

• Deposition changes from gas to solid.

• Condensation changes from liquid to gas.

• Freezing changes from liquid to solid.

Which chemistry concept is false?

• When 2 gases have the same pressure and temperature, they also have the same volume.

• When the pressure of a gas increases, the volume of the gas increases (assuming constant temp).

• When the pressure of a gas increases, the temperature of the gas increases (assuming constant volume).

• When the temperature of a gas increases, the volume of the gas increases (assuming constant pressure).

Which chemistry concept is false?

• The solute is the substance that does the dissolving (ie. water).

• A solution is made up of the solute and the solvent.

• For gases, the higher the temperature, the less you can dissolve.

• For solids, the higher the temperature, the more you can dissolve.

Which chemistry concept is false?

• There is a graph about vapor pressure in Reference Table H.

• There is a graph about solubility in Reference Table G.

• There is a list of polyatomic ions in Reference Table E.

• There is a table of solubility guidelines in Reference Table D.

Which chemistry concept is false?

• Solubility is the ability for a substance to dissolve.

• Dissolving is the process of breaking down into smaller pieces.

• There are 3 types of electrolytes: acids, bases and salts.

• Electrolytes don't contain ions, so they cannot conduct electricity.

Which chemistry concept is false?

• Compounds are made of 2 or more different elements chemically bonded.

• Elements can be broken down by chemical means.

• Mixtures are physically combined.

• Elements contain only 1 type of atom.

Which chemistry concept is false?

• H₂ is a diatomic element.

• Br₂ is a diatomic element.

• Cl₂ is a diatomic element.

• C₂ is a diatomic element.