Quiz about AP Chemistry Review

Question 1

HCl (aq) + NaOH (aq) $$\longrightarrow$$ NaCl (aq) + H₂O (l)

This reaction is a(n)...

Accepted Answer

acid-base reaction

Answer

oxidation-reduction reaction

Answer

precipitation reaction

Question 2

HNO₃ (aq) + KOH (aq) $$\longrightarrow$$ KNO₃ (aq) + H₂O (l) This reaction is a(n)...

Accepted Answer

acid-base reaction

Answer

oxidation-reduction reaction

Answer

precipitation reaction

Question 3

2AgNO₃ (aq) + Cu (s) $$\longrightarrow$$ Cu(NO₃)₂ (aq) + 2Ag (s)

This reaction is a(n)...

Accepted Answer

oxidation-reduction reaction

Answer

acid-base reaction

Answer

precipitation reaction

Question 4

Identify the insoluble compound:

Accepted Answer

$$CaSO_4$$

Answer

$$Fe\left(NO_3\right)_3$$

Answer

$$NH_4Cl$$

Answer

$$KNO_3$$

Question 5

Will the following combination of solutions result in the formation of a precipitate?

Accepted Answer

No

Answer

Yes: KOH

Answer

Yes: NaNO₃

Question 6

Will the following combination of solutions result in the formation of a precipitate?

Accepted Answer

No

Answer

Yes: NaOH

Answer

Yes: NH₄NO₃

Question 7

What is the oxidation number of the Na in: NaCl

Accepted Answer

+1

Answer

+2

Answer

-1

Answer

0

Question 8

What is the oxidation number of the N in: $$NH_4^+$$

Accepted Answer

-3

Answer

+1

Answer

-4

Answer

-5

Question 9

What is the oxidation number of the Ag in: $$Ag^+$$

Accepted Answer

+1

Answer

0

Answer

-1

Answer

+2

Question 10

What is the oxidation number of the Mn in: $$Mn_2O_7$$

Accepted Answer

+7

Answer

+2

Answer

-2

Answer

-7

Question 11

Define Le Chatelier's Principle and how it applies to chemical equilibrium.

Accepted Answer

Le Chatelier's Principle explains how systems at equilibrium respond to external disturbances by shifting the equilibrium position.

Answer

Le Chatelier's Principle suggests that equilibrium shifts are not influenced by changes in concentration, pressure, or temperature.

Answer

Le Chatelier's Principle states that equilibrium cannot be disturbed by external factors.

Answer

Le Chatelier's Principle explains how systems at equilibrium remain unchanged regardless of external influences.

Question 12

Which of the following is a strong acid commonly used in AP Chemistry experiments?

Accepted Answer

Hydrochloric acid (HCl)

Answer

Acetic acid (CH3COOH)

Answer

Carbonic acid (H2CO3)

Answer

Phosphoric acid (H3PO4)

Question 13

In a titration experiment, what is the purpose of using a phenolphthalein indicator?

Accepted Answer

To determine the endpoint of the titration

Answer

To increase the reaction rate

Answer

To neutralize the acid

Answer

To act as a catalyst

Question 14

What is the primary reason for using a calorimeter in a chemical reaction?

Accepted Answer

To measure the heat absorbed or released

Answer

To determine the pH of the solution

Answer

To calculate the molarity of a solution

Answer

To identify the reactants

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