Acids & Bases

A sour taste is a characteristic of:

• acids

• bases

• neutral

• pH scale

Which is a characteristic of a base?

• tastes sour

• found mostly in foods

• feels slippery

• turn litmus paper red

pH is the measure of the concentration of ______.

• Acids

• H+ ion

• OH- ion

• Bases

What is the definition of an BASE?

• a substance that donates a hydrogen (H+) ion

• a substance that donates a hydroxide (OH-) ion

• a substance that accepts a hydrogen (H+) ion

• a substance that accepts a hydroxide (OH-) ion

What is being donated/accepted between conjugate acid-base pairs?

• a hydrogen (H+) ion

• a hydroxide (OH-) ion

• water

• a neutron

What is the conjugate base in the following reaction?

• HCO₃^-

• HCl

• H₂CO₃

• Cl-

What is the conjugate acid in the following equation?

• PO₄^3- 
• HNO₃ 
• NO₃^- 
• HPO₄^2-
  

If a solution is basic which ion will be more present?

• H+
• K+
• OH-
• H-

The conjugate base of HCO₃^- is:

• CO3^-2

• H₂CO₃

• H₃CO₃

• OH^-

Which of the following is NOT a characteristic of a weak acid dissolved in water?

• dissociates 100% into ions

• produces a solution with pH <7

• produces H3O+ ions

• is a proton donor