Acids and Their Properties

What are the physical properties of acids?

• Sour taste, turns blue litmus paper red, and reacts with metals to produce hydrogen gas

• Salty taste, turns red litmus paper blue, and reacts with metals to produce carbon dioxide gas

• Sweet taste, turns blue litmus paper red, and reacts with non-metals to produce hydrogen gas

• Bitter taste, turns red litmus paper blue, and reacts with metals to produce oxygen gas

Give an example of a common acid found in households.

• Hydrochloric acid

• Acetic acid

• Citric acid

• Sulfuric acid

What is the taste of acids?

• Bitter

• Sweet

• Salty

• Sour

How do acids react with metals?

• Acids do not react with metals.

• Acids react with metals to form water and oxygen gas.

• Acids react with metals to form a salt and hydrogen gas.

• Acids react with metals to form a base and carbon dioxide gas.

What color do acids turn blue litmus paper?

• Green

• Yellow

• Purple

• Red

What is the pH range of acids?

• 5 to 10

• 10 to 14

• 0 to 6.9

• 3 to 8

Name one property of acids that makes them corrosive.

• Low pH level

• High pH level

• Neutralizes bases

• Non-reactive with metals

What happens to the pH of a solution when an acid is added to it?

• The pH of the solution remains the same.

• The pH of the solution increases.

• The pH of the solution decreases.

• The pH of the solution becomes neutral.

What are the uses of acids in everyday life?

• Acids are used for transportation

• Acids are used in cleaning products, food preservation, and in the production of various industrial products.

• Acids are used for energy production

• Acids are used for personal hygiene

Explain the effect of acids on indicators.

• Acids have no effect on indicators

• Acids cause indicators to emit light

• Acids make indicators change texture

• Acids change the color of indicators by causing a change in pH, which in turn changes the color of the indicator.