BIOCHEM C785 COMPLETE EXAMINATION
TEST QUESTIONS WITH VERIFIED
SOLUTIONS
●● Chemical Property
Answer: A property used to characterize materials in reactions that
change their identity
●● Element
Answer: Any of over 100 substances that can not be separated to become
simpler, and singly or in combination make up all matter.
●● Atom
Answer: Smallest particle of an element that has the characteristics of
that element.
●● Nucleus
Answer: The microscopic, positively charged central part of an atom
made up of protons and neutrons, also orbited by electrons.
●● Mixture
Answer: Combination of substances which individuals retain individual
property.
, ●● Solution
Answer: Mixture of one or more solutes evenly distributed in a solvent.
●● Solute
Answer: The substance evenly distributed in the solvent to form a
mixture.
●● Solvent
Answer: Holds dissolved substance in a mixture; most of the time, it is
water.
●● pH
Answer: Measure of how acidic or basic a solution is.
●● Acid
Answer: Describes a substance with a pH below 7.
●● Base
Answer: Describes a substance with pH above 7.
●● Polar Molecule
Answer: A molecule with a pair of equal and opposite charges.
TEST QUESTIONS WITH VERIFIED
SOLUTIONS
●● Chemical Property
Answer: A property used to characterize materials in reactions that
change their identity
●● Element
Answer: Any of over 100 substances that can not be separated to become
simpler, and singly or in combination make up all matter.
●● Atom
Answer: Smallest particle of an element that has the characteristics of
that element.
●● Nucleus
Answer: The microscopic, positively charged central part of an atom
made up of protons and neutrons, also orbited by electrons.
●● Mixture
Answer: Combination of substances which individuals retain individual
property.
, ●● Solution
Answer: Mixture of one or more solutes evenly distributed in a solvent.
●● Solute
Answer: The substance evenly distributed in the solvent to form a
mixture.
●● Solvent
Answer: Holds dissolved substance in a mixture; most of the time, it is
water.
●● pH
Answer: Measure of how acidic or basic a solution is.
●● Acid
Answer: Describes a substance with a pH below 7.
●● Base
Answer: Describes a substance with pH above 7.
●● Polar Molecule
Answer: A molecule with a pair of equal and opposite charges.