Acids and Bases

How is a standard hydrogen atom different from a hydrogen ion?

• a hydrogen ion has an extra electron.
• a hydrogen ion is missing an electron.
• a hydrogen ion has an extra proton.
• a hydrogen ion is missing a proton.

What might happen if you mixed a strong acid with an equally strong base?

• You would see an explosive chemical reaction.
• The acid would destroy the base.
• The base would destroy the acid.
• You'd wind up with a pH-neutral substance.

What might happen if buffers did not exist within the human body?

• Our blood and other bodily fluids might become too acidic or basic.
• Our stomach acid would not be able to break down food.
• We would not be able to process glucose within our cells.
• We would not be able to inhale oxygen into our lungs.

What happens immediately after you dissolve acid in water?

• Positively charged hydrogen atoms are released.
• Hydronium ions are released.
• Negatively charged hydrogen atoms are released.
• Neutrally charged hydrogen atoms are released.

What do acids and bases have in common?

• They both eat away at metal.
• They can both conduct electricity.
• They both have a sour taste.
• They both form positively charged ions when dissolved in water.

Which is the most likely pH for a solution of a weak acid?

• 1

• 5

• 11

• 14

Which pH value indicates the most basic solution?

• 7

• 8

• 3

• 11

The cation in an acid is always

• a metal

• hydrogen

• hydroxide

• negatively charged

Acids will neutralize a base, and bases will neutralize acids. If you add a base to a solution containing a strong acid, what will happen to the pH of the solution?

• The pH will increase.

• The pH will decrease.

• The pH will stay the same.

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

• Acid

• Base

• Neither (Neutral)