Acids and Bases

What do all acids produce when dissolved in water?

• Chloride ions (Cl-)

• Sodium ions (Na+)

• Oxygen ions (O2-)

• Hydrogen ions (H+)

Who developed the pH scale?

• Albert Einstein

• Marie Curie

• Isaac Newton

• Søren Sørensen

What does a pH value above 7 indicate?

• The substance is acidic

• The substance is neutral

• The substance is basic

• The substance is corrosive

What type of ions do bases produce in water?

• Chloride ions (Cl-)

• Hydrogen ions (H+)

• Hydroxide ions (OH-)

• Sodium ions (Na+)

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

• Hypertonic

• Amphoteric

• Isotonic

• Hypotonic