Properties of Acids and Bases

What is a common property of bases in terms of litmus paper?

• They turn red litmus paper blue.

• They turn blue litmus paper red.

• They have no effect on litmus paper.

• They turn yellow litmus paper green.

What is an example of a strong base?

• Potassium chloride (KCl)

• Sodium hydroxide (NaOH)

• Calcium carbonate (CaCO3)

• Ammonium sulfate ((NH4)2SO4)

What is the chemical formula for a hydroxide ion?

• H2O

• OH-

• NaOH

• H2O2

What is the taste of acids?

• Sweet

• Bitter

• Sour

• Salty

Why are acids considered corrosive?

• Because they can 'eat away' certain substances.

• Because they are always liquid.

• Because they have a sour taste.

• Because they are always harmful to humans.

What is the pH range of bases?

• 0 to 6

• 7 to 10

• 8 to 14

• 11 to 14

What is the taste of bases?

• Sweet

• Sour

• Bitter

• Salty

What is a hydrogen ion (H+) also known as?

• A neutron.

• A proton.

• An electron.

• A muon.

What is a common property of acids in terms of litmus paper?

• They turn blue litmus paper red.

• They turn red litmus paper blue.

• They have no effect on litmus paper.

• They turn yellow litmus paper green.

What is the term for substances that can act as both acids and bases?

• Amphoteric substances

• Acidic substances

• Basic substances

• Neutral substances