Acids and Bases Review

What are the properties of acids?

• Acids have a sweet taste, turn red litmus paper blue, and have a pH greater than 7.

• Acids have no taste, do not affect litmus paper, and have a pH of 7.

• Acids have a sour taste, turn blue litmus paper red, and have a pH less than 7.

• Acids have a bitter taste, turn blue litmus paper red, and have a pH greater than 7.

List three common examples of acids found in everyday life.

• Hydrochloric acid, sulfuric acid, nitric acid

• Boric acid, hydrobromic acid, hydroiodic acid

• Citric acid, acetic acid, carbonic acid

• Lactic acid, phosphoric acid, hydrofluoric acid

What are the properties of bases?

• Sweet taste, slimy texture, and ability to turn red litmus paper green

• Sour taste, rough texture, and ability to turn blue litmus paper red

• No taste, dry feel, and ability to turn blue litmus paper yellow

• Bitter taste, slippery feel, and ability to turn red litmus paper blue

Give an example of a strong base and a weak base.

• Strong base: Hydrochloric acid (HCl), Weak base: Sulfuric acid (H2SO4)

• Strong base: Sodium hydroxide (NaOH), Weak base: Ammonia (NH3)

• Strong base: Potassium hydroxide (KOH), Weak base: Hydrogen peroxide (H2O2)

• Strong base: Calcium hydroxide (Ca(OH)2), Weak base: Carbon dioxide (CO2)

What happens during a neutralization reaction?

• An acid and a base react to form a metal

• An acid and a base react to form carbon dioxide

• An acid and a base react to form oxygen

• An acid and a base react to form water and a salt.

Explain the role of indicators in acid-base titrations.

• Indicators help in determining the concentration of the titration by changing color at a specific pH.

• Indicators help in determining the volume of the titration by changing color at a specific pH.

• Indicators help in determining the endpoint of the titration by changing color at a specific pH.

• Indicators help in determining the temperature of the titration by changing color at a specific pH.

What is acid rain and how does it form?

• Acid rain is formed from the evaporation of sea water

• Acid rain is a result of excessive use of sunscreen

• Acid rain is caused by the burning of fossil fuels

• Acid rain is formed when sulfur dioxide and nitrogen oxides are released into the atmosphere and react with water, oxygen, and other chemicals to form sulfuric and nitric acids.

What are the environmental impacts of acid rain?

• Acid rain helps in the growth of plants and aquatic animals

• Acid rain can lead to the acidification of soil and water bodies, which can harm plants, aquatic animals, and infrastructure.

• Acid rain only affects human health

• Acid rain has no impact on the environment

How can we prevent or reduce the effects of acid rain?

• Increase emissions of sulfur dioxide and nitrogen oxides

• Use more fossil fuels

• Ignore emissions of sulfur dioxide and nitrogen oxides

• Reduce emissions of sulfur dioxide and nitrogen oxides

Explain the concept of pH and its significance in the context of acids and bases.

• pH is a measure of the temperature of a solution, with a range from 0 to 14. Acids have a pH less than 7, bases have a pH greater than 7, and a pH of 7 is considered neutral.

• pH is a measure of the acidity or alkalinity of a solution, with a range from 0 to 14. Acids have a pH less than 7, bases have a pH greater than 7, and a pH of 7 is considered neutral.

• pH is a measure of the amount of water in a solution, with a range from 0 to 14. Acids have a pH greater than 7, bases have a pH less than 7, and a pH of 7 is considered neutral.

• pH is a measure of the concentration of salt in a solution, with a range from 0 to 14. Acids have a pH greater than 7, bases have a pH less than 7, and a pH of 7 is considered neutral.