MP3: Three weeks test AP chemistry

Front

Atoms of H only form _________ bonds.

Back

Single

Front

What is bond order?

Back

It is the number of chemical bonds between two atoms.

Front

What is the bond number for the C-O bonds in the carbonate ion?

Back

1.33

Front

How many resonance structures does SO₂ have?

Back

2

Front

According to the octet rule, most elements need _______ valence electrons.

Back

8

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

Define resonance in chemistry.

Back

Resonance is the concept that some molecules can be represented by two or more valid Lewis structures.

Front

What is a covalent bond?

Back

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

Front

What is electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is the significance of the Lewis structure?

Back

Lewis structures represent the arrangement of atoms and the distribution of electrons in a molecule.