Molecules Review

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Front

What is a double bond in chemistry?

Back

A double bond is a type of chemical bond where two pairs of electrons are shared between two atoms.

Front

Which molecule is an example of a compound with double bonds?

Back

Carbon dioxide (CO₂) is an example of a molecule with double bonds.

Front

What does the Bohr model represent?

Back

The Bohr model represents the structure of an atom, showing electrons in defined orbits around the nucleus.

Front

How many shells does an atom in the first row of the Periodic Table have?

Back

An atom in the first row of the Periodic Table has only one shell.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

How many valence electrons does a nitrogen atom have?

Back

A nitrogen atom has 5 valence electrons.

Front

What is the difference between butane and butanol?

Back

The main difference is that butanol contains one oxygen atom, while butane does not.

Front

What functional group characterizes alcohols?

Back

The -OH group (hydroxyl group) characterizes alcohols.

Front

What is the significance of the -OH group in alcohols?

Back

The -OH group is responsible for the chemical reactions that alcohols undergo.