Which of the following solutions would require the greatest amount of base to be added to bring the solution to neutral ph? a)tomato juice at ph 4 b)vinegar at ph 3 c)household bleach at ph 12 d)gastric juice at ph 2 e)black coffee at ph 5

Which of the following is an oxidation-reduction reaction? (pictured below)

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

Which of the following does not make up ground substance of connective tissue? hyaluronic acid elastic fibers glycosaminoglycan proteoglycan