Front

How many electrons does each line in a Lewis structure indicate are shared?

Back

Each line indicates 2 electrons are shared.

Front

How many valence electrons are available for bonding in the sulfate ion (SO₄²⁻)?

Back

32 electrons.

Front

Which of the following compounds is covalent? NaCl, Pb(NO₃)₂, CO₂, AlCl₃

Back

CO₂.

Front

How many double bonds are present in CCl₄?

Back

0 double bonds.

Front

What is the correct molecular structure for carbon dioxide (CO₂)?

Back

Linear structure with two double bonds between carbon and each oxygen.

Front

What is a Lewis structure?

Back

A diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons.

Front

What is the octet rule?

Back

Atoms tend to bond in such a way that they have eight electrons in their valence shell.

Front

What is a covalent bond?

Back

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

Front

What is the difference between a single bond and a double bond?

Back

A single bond involves one pair of shared electrons, while a double bond involves two pairs.

Front

How do you determine the total number of valence electrons in a molecule?

Back

Add the valence electrons of each atom in the molecule.