Unit 2 - Biochemistry Test Review

In the equation HCl + NaOH ⟶ NaCl + H₂O, what are the reactants?

If a substance has a pH of 1-6, it is an ________. What ion is increased? (answer both parts, separated by a comma)

If a substance has a pH of 8-14, it is a ________. What ion is increased? (answer both parts, separated by a comma)

Two or more elements combined by chemical bonds are ________.

What is the term for when one side of the molecule has a negative charge and the other side of the molecule has a positive charge?

Electrons are shared in this type of bond (strongest type of bond).

Two water molecules are held together by a weak bond called a ________. (Hint: this bond is responsible for water's unique properties)

The universal solvent is ________.

What property of water allows insects to “walk” on water?

Different amino acid sequences make different active site shapes in proteins that act as catalysts. What does a catalyst do?