Acid Base Review

Pheolphthalein is pink in an aqueous solution having a pH of

• 2

• 7

• 5

• 12

An indicator will ______________ when it is in contact with an acid or base

• Bubble

• Form a new substance

• Change color

• Stay the same color

Predict the products of this reaction.

HCl + Ca(OH)2

• NaCl

• CaCl2

• CaCl2 + H2O

• H2O

Tags

NGSS.MS-PS1-2

Which term refers to the amount of acid or base dissolved in a solution?

• concentrated or dilute

• strong or weak

• neutral or charged

• acid or base

A(n) ___________ is a procedure in which a solution of known concentration is used to determine the concentration of an unknown solution.

• experiment

• titration

• chemistry

• reaction

Neutral solutions have a pH of

• pH of 2

• pH of 0

• pH of 7

• A neutral solution does not have a pH

A base is a substance

• That releases OH- ions when dissolved in water

• That releases H+ ions when dissolved in water

• Does not release any ions when dissolved in water

• None of the above

Complete the following reaction: HCl + Mg(OH)₂ -->

• MgCl₂ + H₂O

• Mg +H₂O

• MgCl₂ + H₂

• MgCl₂ + H₂O + CO₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

An increase in the amount of hydrogen ions in a solution ____ the pH.

• raises

• lowers

• does not affect

• doubles

Consider the following reaction: HCl + KOH --> H2O + KCl
Identify the acid in the reaction above.

• HCl

• H2O

• KOH

• KCl