Mid-Term Exam Review. Bondx, Reactions and Matter

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where two atoms share one or more pairs of electrons.

Front

Which element is most likely to form a covalent bond?

Back

Oxygen (O) is most likely to form a covalent bond.

Front

What does the atomic number represent?

Back

The atomic number represents the number of protons in the nucleus of an atom.

Front

What are isotopes?

Back

Isotopes are atoms of the same element that have different numbers of neutrons.

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in the nucleus of an atom.

Front

What is the chemical symbol for oxygen?

Back

The chemical symbol for oxygen is O.

Front

What is the difference between an ion and an isotope?

Back

An ion is an atom that has gained or lost electrons, while an isotope is an atom with a different number of neutrons.

Front

What does the symbol Hg represent?

Back

Hg is the chemical symbol for mercury.

Front

What happens during the decomposition of mercury (IV) oxide?

Back

Mercury (IV) oxide decomposes into mercury and oxygen gas.