Acids and Bases

Weak acids found in living things are called:

• organic acid

• mineral acid

• concentrated acid

• carbonic acid

All acids provide --- ions

• hydrogen

• hydroxide

• chloride

• sulfate

State the difference between a dilute acid and a concentrated acid.

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Tags

NGSS.HS-PS1-5

What range of values on the pH scale represent solutions with a higher ratio of hydronium (H₃O⁺) ions?

• 0-14

• below 7

• 7

• above 7

Four solutions are tested and found to have the following pH values. Which of these substances would be considered the weakest acid?

• Lemon Juice - pH=2

• Apple Juice - pH=4.5

• Shower Cleaner - pH=5.5

• Hydrogen Peroxide - pH=7

True or false: a neutral solution has equal amounts of H⁺ and OH^-.

• True

• False

NaOH may be found in drain cleaners and as a component of soaps. Is NaOH an acid or a base?

• Acid

• Base

• Neither (Neutral)

HCl is found in household products, including some toilet bowl cleaners. Is HCl an acid or a base?

• Acid

• Base

• Neither (Neutral)

Complete the definition below:

Acids are....

• hydrogen donors.

• hydrogen acceptors.

• proton donors.

• proton acceptors.

The pH scale is used to determine the strength of

• acids and bases

• chemical bonds

• electrical charges

• particles in a solution