ACIDS AND BASES 1

Which has a pH below 7?

• Acid
• Base

Which has a pH above 7?

• Acid
• Base

Which has a bitter taste?

• Base
• Acid
• flagella
• cila

If an acid is combined with a base of equal strength, the result will most likely be

• a neutral solution.
• a stronger acid.
• impossible to tell without testing the pH.
• a stronger base

Tags

NGSS.MS-PS1-2

In a neutralization reaction, what are the products of a reaction between an acid and a base?

• Another acid and base
• Carbon dioxide and a salt
• Water and a salt
• Either two acids or two bases

A substance that ionizes completely in solution is

• an insulator.
• a strong electrolyte. 
• a weak acid.
• a non-electrolyte.

Which of the following is a conjugate acid/base pair?

• HCl/OCl^-
• H₂SO₄/SO₄^2-
• NH₄⁺/NH₃
• H₃O⁺/OH^-

The pH of a solution at 25^ₒC in which [OH-] = 3.9 x 10^-5M is:

• 4.41
• 3.90
• 9.59
• 4.80

Which of the following is the conjugate acid of HCO₃^-1?

• H₂CO₃
• CO₃^-2
• H₂CO_3^-1
• CO₃^-1

A sample of pure water is neutral because it contains

• some H+ ions. 
• equal amounts of hydroxide and hydrogen ions.
• some hydroxide ions.
• only H₂O molecules.