AP Biology Chemistry

What makes a molecule polar?

• Equal sharing of valence electrons
• Unequal sharing of valence electrons
• Stealing of electrons
• Temporary charges that come and go

CO₂ is an example of a(n) _____ bond.

• covalent
• adhesive
• ionic
• cohesive

LiF is an example of a(n) _____ bond.

• covalent
• adhesive
• ionic
• cohesive

Covalently bonded molecules are made of atoms that

• share electorns
• shoot their electrons out into space
• move their electrons to the nucleus of the atom
• give electrons to and accept electrons from each other

Ionically bonded compounds are made of atoms that 

• share electrons
• shoot their electrons out into space
• move their electrons to the nucleus of the atom
• give electrons to and accept electrons from each other

The compounds on the left side of a chemical equation are called the _____.

• Ingredients
• Reactants
• Total
• Products

The compounds on the right side of a chemical equation are called the _____.

• Ingredients
• Reactants
• Total
• Products

You dump a Kool-Aid packet into water. What substance is the solute?

• water
• Kool-Aid

In an aqueous environment which of the following is the strongest bond?

• covalent

• ionic attraction in solution

• van der Waals

• hydrogen

Why is Carbon so important to living things?

• It forms molecules easily
• It can form many shapes
• It is in most organic molecule
• All of these