Acids & Bases Lesson Part 1

Acids & Bases Lesson Part 1

By Michaela Bratsch

Multiple Choice

Properties of bases are...

• feel soapy and neutralise acids

• irritate your skin and react with metals to produce bubbles

• taste sour and turn litmus red

• have pH less than 7

Multiple Choice

Bleach and oven cleaner are:

• strong acids
• strong bases

Multiple Choice

Which of the following is NOT a characteristic of an acid?

• sour taste

• corrosive

• turns litmus paper blue

• neutralises bases

Multiple Choice

Which of the following is true?

• Acids and bases form hydroxide ions in solution

• Acids form hydroxide ions and bases hydrogen ions in solution

• Acids form hydrogen ions in solution, bases do not form ions in solution

• Acids form hydrogen ions in solution and bases hydroxide ions

Multiple Choice

A substance that changes color when mixed with an acid or base is a(n) ___.

• indicator
• neutralizer
• corrosive
• electricity

Multiple Choice

What color does litmus paper turn in the presence of an acid?

• blue
• black
• green
• red

Multiple Choice

Strong acids and bases...

• do not break apart into ions (non-electrolyte)
• partially break apart into ions (weak electrolyte)
• completely break apart into ions (non-electrolyte)
• completely break apart into ions (strong electrolyte)

Multiple Choice

What are the weak acids and bases?

• all acids and bases are weak
• if not classified as strong, the acid/base is considered weak
• all acids and bases are strong
• there are more strong acids and bases than there are weak acids/bases

Multiple Choice

Which of the following is NOT a strong acid?

• Sulfuric acid

• Hydrochloric acid

• Perchloric acid

• Hydrofluoric acid

Multiple Choice

Which of the following is a weak acid?

• HClO₄

• H₂S

• HNO₃

• HBr

Multiple Choice

Which of the following is a weak base?

• Sodium hydroxide

• Lithium hydroxide

• Magnesium hydroxide

• Strontium hydroxide