Used by scientist to determine the age of a fossil or artifact.

What is the h+ concentration for an aqueous solution with poh = 4.01 at 25 ∘c? express your answer to two significant figures and include the appropriate units.

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

How does a noncompetitive inhibitor reduce an enzyme’s activity?