Chem Final exam

Front

What is the molar mass of H2O?

Back

18 g/mol

Front

A covalent bond forms when atoms transfer electrons. True or False?

Back

False

Front

Which of the following has the highest electronegativity: Oxygen, Nitrogen, Fluorine, Carbon?

Back

Fluorine

Front

Which two elements should you combine to form an ionic compound: Oxygen (O), Magnesium (Mg), Argon (Ar)?

Back

Oxygen and Magnesium

Front

Which bond involves the sharing of electron pairs between atoms?

Back

Covalent

Front

Define ionic bond.

Back

An ionic bond is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions.

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electron pairs.

Front

What is the significance of the octet rule in chemistry?

Back

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

Front

What is a polar covalent bond?

Back

A polar covalent bond is a type of covalent bond where the electrons are not shared equally between the two atoms.