Module 22 - Acids, Bases, and Salts

Which of the following are characteristics of ACIDS? Select all that apply.

• H₃O⁺

• feels slippery

• sour taste

• can cause burns

• bitter taste

Which of the following are characteristics of BASES? Select all that apply.

• OH^-

• feels slippery

• sour taste

• can cause burns

• bitter taste

Which of the following are characteristics that both, ACIDS and BASES share? Select all that apply.

• OH^-

• feels slippery

• can cause litmus paper to change color

• can cause burns

• bitter taste

Which of these solutions contains a weak acid?

• W

• X

• Y

• Z

Which of the following best describes the parts of a soap molecule?

• sulfonic acid group salt attached to a nonpolar carbon chain

• hydronium ion attached to a nonpolar carbon chain

• carboxylic acid salt attached to a nonpolar carbon chain

• water attached to a nonpolar carbon chain

Which substance might you use to titrate an oxalic acid solution?

• Ca(NO₃)₂

• NaOH

• NH₄Cl

• HBr

A(n) _____ is a substance that produces hydrogen ions in solution.

• indicator

• salt

• acid

• base

Which of the following chemical formulas represents a base?

• Ca(OH)₂

• CH₂COOH

• HCl

• H₂SO₄

When a salt forms in an acid-base reaction, the _____ contributes the positive ion to the salt, and the _____ contributes the negative ion to the salt.

• indicator, acid

• base, salt

• acid, base

• base, acid

Which of the following gives the pH of a concentrated solution made by dissolving table salt (NaCl) in pure water?

• 2

• 5

• 7

• 10