Chapter 2/3 Part 2 Question Preview (ID: 14045)


Environmental Science Biochemistry Chapter. TEACHERS: click here for quick copy question ID numbers.

Why do atoms form bonds?
a) To fill their outer energy level and become stable.
b) To get rid of their electrons and become lighter.
c) To gain electrons and mass.
d) To prevent from decaying.

A bond in which atoms share electrons
a) ionic bond
b) covalent bond
c) hydrogen bond
d) partial bond

A bond in which the partial charges on molecules attract
a) ionic bond
b) covalent bond
c) hydrogen bond
d) partial bond

A bond in which one atom steals an electron from another creating oppositely charged ions which attract
a) ionic bond
b) covalent bond
c) hydrogen bond
d) partial bond

A bond in which atoms share electrons unevenly
a) covalent bond
b) polar covalent bond
c) non-polar covalent bond
d) hydrogen bond

A _________ is a uniform mixture.
a) solute
b) solvent
c) solution
d) mixture

The _______ is the part of a solution doing the dissolving.
a) solute
b) solvent
c) neutron
d) proton

The _______ is the part of a solution being dissolved.
a) solute
b) neutron
c) solvent
d) proton

Why are aqueous solutions important to living things?
a) They help keep the organism hydrated so it can do chemical reactions.
b) All chemical reactions stop in living things put in aqueous solutions.
c) They release water for the organism to use for chemical reactions.
d) All chemical reactions occur in aqueous solutions in living things.

A _________ is a solution in which no more solute can be added.
a) Saturated solution
b) Aqueous solution
c) Heterogeneous solution
d) Alkaline solution

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