Bonds

Question 1

What is a chemical bond?

Answer 1

A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds.

Question 2

What are the two main types of chemical bonds?

Answer 2

The two main types of chemical bonds are ionic bonds and covalent bonds.

Question 3

True or False: Ionic bonds involve the sharing of electrons.

Answer 3

False: Ionic bonds involve the transfer of electrons.

Question 4

Which type of bond is formed when electrons are shared between atoms?

Answer 4

Covalent bond.

Question 5

Fill in the blank: In an ionic bond, one atom ______ electrons to another atom.

Answer 5

transfers

Question 6

What is the role of valence electrons in chemical bonding?

Answer 6

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Question 7

Multiple Choice: Which of the following is NOT a type of chemical bond? A) Ionic B) Covalent C) Magnetic D) Metallic

Answer 7

C) Magnetic

Question 8

What happens to energy when a chemical bond is formed?

Answer 8

Energy is released when a chemical bond is formed.

Question 9

True or False: Breaking a chemical bond requires energy.

Answer 9

True.

Question 10

What is a molecule?

Answer 10

A molecule is a group of two or more atoms bonded together by covalent bonds.

Question 11

Fill in the blank: The ______ energy is the energy needed to break a chemical bond.

Answer 11

bond dissociation

Question 12

What is the difference between polar and nonpolar covalent bonds?

Answer 12

Polar covalent bonds involve unequal sharing of electrons, while nonpolar covalent bonds involve equal sharing.

Question 13

Multiple Choice: Which type of bond is typically stronger? A) Ionic B) Covalent C) Both are equally strong

Answer 13

B) Covalent

Question 14

What is the octet rule?

Answer 14

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell.

Question 15

True or False: Metals usually form cations in ionic bonds.

Answer 15

True.

Question 16

What is a polar molecule?

Answer 16

A polar molecule has a partial positive charge on one side and a partial negative charge on the other due to unequal sharing of electrons.

Question 17

Fill in the blank: A ______ bond is formed between two atoms when one atom donates an electron to another atom.

Answer 17

ionic

Question 18

What is a compound?

Answer 18

A compound is a substance formed when two or more different elements are chemically bonded together.

Question 19

Multiple Choice: Which of the following compounds is formed by ionic bonding? A) H2O B) NaCl C) CO2

Answer 19

B) NaCl

Question 20

What is bond energy?

Answer 20

Bond energy is the measure of the strength of a chemical bond, defined as the amount of energy required to break the bond.

Question 21

True or False: All chemical bonds are equally strong.

Answer 21

False.

Question 22

What type of bond is formed between metal atoms?

Answer 22

Metallic bond.

Question 23

Fill in the blank: In a ______ bond, electrons are free to move around, resulting in conductivity.

Answer 23

metallic

Question 24

What determines the type of bond that will form between two atoms?

Answer 24

The difference in electronegativity between the two atoms determines the type of bond.

Question 25

Multiple Choice: Which of the following best describes a nonpolar covalent bond? A) Electrons are transferred B) Electrons are shared equally C) Electrons are shared unequally

Answer 25

B) Electrons are shared equally

Question 26

What is the primary force that holds atoms together in a chemical bond?

Answer 26

The electrostatic attraction between positively and negatively charged particles.