Quiz about AP Chemistry Review

Question 1

What charge does an atom have when it GAINS electrons?

Accepted Answer

Negative

Answer

Positive

Answer

Neutral

Question 2

Sodium has an atomic number of 11, how many protons does this atom have?

Accepted Answer

11

Answer

22

Answer

12

Answer

2

Question 3

What term is used for the joining of atoms to form new substances?

Accepted Answer

chemical bonding

Answer

valence electrons

Answer

physical bonding

Answer

energy level

Question 4

How many valence electrons are in the element Carbon?

Accepted Answer

4 electrons

Answer

2 electrons

Answer

6 electrons

Answer

8 electrons

Question 5

The Periodic Table of Elements is most related to...

Accepted Answer

Chemistry

Answer

Geology

Answer

Astronomy

Answer

Biology

Question 6

What is the study of matter and how it changes?

Accepted Answer

Chemistry

Answer

Biology

Answer

Physics

Answer

Geology

Question 7

What is the result of a neutralization reaction between an acid and a base?

Accepted Answer

Salt and water

Answer

Acid and water

Answer

Base and water

Answer

Gas and water

Question 8

Which of the following best describes a covalent bond?

Accepted Answer

Sharing of electrons

Answer

Transfer of electrons

Answer

Attraction between ions

Answer

Attraction between molecules

Question 9

What type of reaction is represented by the equation: $$2H_2 + O_2 \rightarrow 2H_2O$$ ?

Accepted Answer

Synthesis

Answer

Decomposition

Answer

Single replacement

Answer

Double replacement

Question 10

What happens in an ionic bond?

Accepted Answer

Atoms gain or lose electrons and bond through charge.

Answer

Atoms share valence electrons.

Answer

Atoms connect through similar affinities (e.g. both hydrophobic)

Question 11

What happens in a covalent bond?

Accepted Answer

Atoms share valence electrons.

Answer

Atoms gain or lose electrons and bond through charge.

Answer

Atoms connect through similar affinities (e.g. both hydrophobic)

Question 12

Carbon and other nonmetals are found in which area of the periodic table?

Accepted Answer

on the right side

Answer

in the bottom rows

Answer

on the left-most side

Answer

in the middle columns

Question 13

The order of the elements in the periodic table is based on what?

Accepted Answer

the number of protons in the nucleus

Answer

atomic mass

Answer

the electric charge of the nucleus

Answer

the number of neutrons in the nucleus

Question 14

What subatomic particle has most likely been changed in an ion?

Accepted Answer

The number of electrons

Answer

The number of protons

Answer

The number of neutrons

Question 15

How many elements are in C₆H₁₂O₆?

Accepted Answer

3

Answer

1

Answer

24

Answer

48

Question 16

How many Hydrogen atoms are in Water?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 17

How many neutrons does this isotope have? ⁸⁹ ₃₆Kr

Accepted Answer

53

Answer

36

Answer

89

Answer

125

Question 18

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

Accepted Answer

Yes: BaSO₄

Answer

Yes: KNO₃

Answer

No

Question 19

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

Accepted Answer

Yes: AgCl

Answer

Yes: NaNO₃

Answer

No

Question 20

AgNO₃ (aq) + KCl (aq) $$\longrightarrow$$ KNO₃ (aq) + AgCl (s)

This reaction is a(n)...

Accepted Answer

precipitation reaction

Answer

acid-base reaction

Answer

oxidation-reduction reaction

Question 21

What is the primary purpose of a buffer solution in a chemical reaction?

Accepted Answer

To maintain a constant pH

Answer

To speed up the reaction

Answer

To change the color of the solution

Answer

To increase the temperature

Question 22

Which of the following elements is most likely to form a cation?

Accepted Answer

Sodium

Answer

Oxygen

Answer

Chlorine

Answer

Argon

Question 23

In the reaction @@ ext{2Na} + ext{Cl}_2 ightarrow ext{2NaCl}@@, what type of reaction is taking place?

Accepted Answer

Synthesis

Answer

Decomposition

Answer

Single replacement

Answer

Double replacement

Question 24

What is the role of a catalyst in a chemical reaction?

Accepted Answer

To lower the activation energy

Answer

To be consumed in the reaction

Answer

To increase the reactants

Answer

To change the products

Question 25

Which of the following best describes an endothermic reaction?

Accepted Answer

Absorbs heat from the surroundings

Answer

Releases heat to the surroundings

Answer

Occurs without energy change

Answer

Produces light

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