chemistry

Question 1

What type of bond involves the sharing of electron pairs between atoms?

Answer 1

Covalent bond

Question 2

True or False: Ionic bonds are formed by the transfer of electrons from one atom to another.

Answer 2

True

Question 3

Fill in the blank: A molecule formed by two or more nonmetals is typically held together by ______ bonds.

Answer 3

covalent

Question 4

What is the primary characteristic of metallic bonding?

Answer 4

The pooling of electrons in a ‘sea’ of electrons that are free to move.

Question 5

Which type of bonding is most likely to occur between a metal and a nonmetal?

Answer 5

Ionic bonding

Question 6

What is a covalent molecule?

Answer 6

A molecule formed when two or more nonmetals share electrons.

Question 7

Which of the following is a property of ionic compounds? (a) High melting point (b) Low conductivity (c) Volatile

Answer 7

a) High melting point

Question 8

True or False: Covalent bonds can involve single, double, or triple bonds.

Answer 8

True

Question 9

What type of bond is formed between two chlorine atoms?

Answer 9

Covalent bond

Question 10

Define ionic bonding.

Answer 10

Ionic bonding is the electrostatic attraction between oppositely charged ions.

Question 11

Fill in the blank: In metallic bonding, metal atoms lose their ______.

Answer 11

valence electrons

Question 12

What is the bond angle in a water (H2O) molecule?

Answer 12

Approximately 104.5 degrees

Question 13

Which type of bond is characterized by a high degree of electrical conductivity?

Answer 13

Metallic bond

Question 14

True or False: Covalent compounds generally have low melting and boiling points.

Answer 14

True

Question 15

What is the octet rule?

Answer 15

Atoms tend to form bonds until they are surrounded by eight valence electrons.

Question 16

What is the difference between polar and nonpolar covalent bonds?

Answer 16

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

Question 17

What type of structure do ionic compounds typically form?

Answer 17

Crystal lattice structure

Question 18

Fill in the blank: The bond formed between sodium and chlorine in sodium chloride is an ______ bond.

Answer 18

ionic

Question 19

What is a characteristic of covalent networks?

Answer 19

They have very high melting and boiling points.

Question 20

Which of the following is an example of a metallic compound? (a) NaCl (b) Cu (c) H2O

Answer 20

b) Cu

Question 21

What is the primary type of bond in diamond?

Answer 21

Covalent bond

Question 22

True or False: Ionic compounds are typically soluble in water.

Answer 22

True

Question 23

What determines the type of bond formed between two atoms?

Answer 23

The difference in electronegativity between the atoms.

Question 24

Fill in the blank: The type of bond formed in hydrogen gas (H2) is a ______ bond.

Answer 24

covalent

Question 25

What is the formula for calculating the formal charge of an atom in a molecule?

Answer 25

Formal Charge = Valence Electrons - (Nonbonding Electrons + 1/2 Bonding Electrons)

Question 26

What is the shape of a methane (CH4) molecule?

Answer 26

Tetrahedral

Question 27

Which type of bonding involves the transfer of electrons to form ions?

Answer 27

Ionic bonding

Question 28

True or False: Metallic bonds are typically stronger than covalent bonds.

Answer 28

False

Question 29

What is a common property of covalent compounds?

Answer 29

They usually have low conductivity.

Question 30

What type of bond exists in a molecule of oxygen (O2)?

Answer 30

Double covalent bond

Question 31

Fill in the blank: The strongest type of covalent bond is a ______ bond.

Answer 31

triple