Chemistry First Semester Final

Front

What type of bond is formed between sulfur and oxygen in SO₂?

Back

Covalent

Front

What is the chemical formula for Potassium sulfate?

Back

K₂SO₄

Front

What is the formula for Barium oxide?

Back

BaO

Front

What is the correct name for the compound NO?

Back

Nitrogen Monoxide

Front

What does the oxidation number indicate?

Back

It tells you if an ion has lost or gained electrons.

Front

What is the definition of a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

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 oxidation state of potassium in K₂SO₄?

Back

+1

Front

What is the significance of the subscript in a chemical formula?

Back

It indicates the number of atoms of each element in a molecule.

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged species composed of two or more atoms bonded together.