Chemistry Fall 2024 Final Review

Front

How many grams are in 8.2 moles of CaCO₃?

Back

820 g

Front

What is the full electron configuration for Oxygen?

Back

1s²2s²2p⁴

Front

What is the molecular geometry of a molecule that has 2 bonding domains and 2 lone pairs?

Back

Bent

Front

Isotopes of an element have:

Back

The same atomic number but different mass numbers

Front

What ending is used for the names of negative ions formed when atoms gain electrons?

Back

-ide

Front

What is the molar mass of CaCO₃?

Back

100 g/mol

Front

Define an isotope.

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the principle behind the octet rule?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of 8 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 electrons.

Front

What is the shape of a molecule with 4 bonding domains and no lone pairs?

Back

Tetrahedral