Acids & Bases [Duplicate]

Which range of numbers represent basic solution?

• 0-6
• 7
• 8-14
• 3-9

Which range of numbers represent an acidic solution?

• 0-6
• 7
• 8-14
• 5-9

Which of the following represents the chemical formula for hydronium?

• H₂O
• H⁺
• H₃O⁺
• OH^-

Bases turn red litmus paper (   ).

• red
• blue
• yellow
• green

Acids turn blue litmus paper (    ).

• red
• blue
• yellow
• green

A (       ) is a substance that either contains hydroxide ions (OH^-) or reacts with water to form hydroxide ions.

• acid
• base
• hydronium ion
• water

Which is a basic compound?

• antacid
• drain cleaner
• bleach
• all of the above

Which of the following is a basic solution?

• household ammonia
• HCl dissolved in water
• Vinegar
• Pure water

When a solution of an acid reacts with a solution of a base, hydronium ions react with hydroxide ions to form

• salt
• a stronger acid
• a weaker base
• water

The pH of a substance is a measure of its

• Boiling point
• Food value
• Ability to mix with water
• Hydronium ion concentration