Acids and Bases Review

Name at least three characteristics of acids, including their pH range.

• Sour taste, turns blue litmus red, pH below 7

• Bitter taste, turns red litmus blue, pH above 7

• Slippery feel, turns blue litmus red, pH above 7

• Sour taste, no effect on litmus paper, pH of 7

Name at least three characteristics of bases, including their pH range.

• Sour taste, turns blue litmus red, pH below 7

• Bitter taste, turns red litmus blue, pH above 7

• Slippery feel, turns blue litmus red, pH above 7

• Bitter taste, no effect on litmus paper, pH of 7

According to the Arrhenius model of acids and bases, acids contain _______ & produce _______ ions in solution; & bases contain _______ & produce _______ ions in solution.

• Hydrogen, hydroxide; hydroxide, hydrogen

• Hydroxide, hydrogen; hydrogen, hydroxide

• Hydrogen, hydronium; hydroxide, hydronium

• Hydronium, hydrogen; hydrogen, hydroxide

According to the Bronsted-Lowry model of acids and bases, Acids donate _______ ions (protons) & bases accept _______ ions (protons) when they dissociate in water.

• Hydroxide, hydronium

• Hydrogen, hydroxide

• Hydronium, hydroxide

• Hydrogen, hydrogen

An acid that completely ionizes is a _______ acid & an acid that partially ionizes is a _______ acid.

• Strong, weak

• Weak, strong

• Dilute, concentrated

• Concentrated, dilute

A solution has a H+ concentration of 6.5 x 10^-9, what is the pH?

• 8.19

• 9.18

• 8.82

• 9.82

A solution of vinegar has an H+ concentration of 2.1 x 10^-3, what is the pH?

• 2.68

• 3.32

• 2.32

• 3.68

A _______ reaction is when an acid reacts with a base.

• Precipitation

• Neutralization

• Redox

• Synthesis

What two products are always formed by a reaction of an acid & a base?

• Salt and oxygen

• Salt and water

• Water and carbon dioxide

• Salt and hydrogen

What is the safest way to dilute a concentrated acid?

• Add acid to water while stirring

• Add water to acid while stirring

• Add acid to a neutral solution while stirring

• Add water to a neutral solution while stirring