Exam Review

The pH of a basic solution is

• exactly 7

• less than 7

• greater than 7

• between 3 and 6

Which of the following substances would conduct and potentially cause a nearby person to be electrocuted by the shock?

• C2H5OH

• C6H12O6

• Fe2O3

• H2SO4

A sample of a compound is added to distilled water in a clean beaker. A reaction occurs, and the water temp drops rapidly. Which of the following is best supported?

• An endothermic reaction occured

• A dehydration reaction occured

• Water was originally warmer than the compound

• The beaker was contaminated by another compound

Which of the following would increase the rate of dissolution of a solid in a solution?

• Cool the solid and the solution

• Cool only the solid

• Dry up the solvent

• Stir the solid and solution

A solution in which more solute is dissolved than is typically soluble at a given temperature is

• supersaturated

• unstaurated

• saturated

• diluted

In the reaction 2 H2 + O2 --> 2 H2O

What is the mole ratio of hydrogen to water?

• 2:2

• 2:1

• 1:2

• 4:4

Stronger acids are those that

• hold on to their protons more strongly

• lose their protons more easily

• more completely inhibit polarity in water

• exhibit hydrogen bonding

The more kinetic energy there is in a sample of matter, the

• more energy is absorbed as heat

• more energy is given off as heat

• lower the temperature

• higher the temperature

What will happen to the ability of a gas to dissolve in a liquid if the temperature increases?

• Solubility of the gas increases

• Solubility of the gas decreases

• Solubility of the gas increases or decreases

• Solubility of the gas is not affected

Which of the following compounds contains ions that could be used in order to form a precipitate with lead?

• NaNO3

• K2SO4

• HC2H3O2

• NaClO2