Science Focus 2 - Chapter Tests - Pearson Australia Media Resources

Science Focus 2 TEST
Chapter 2: Atoms
8 Complete each of the following
chemical reactions.
a Lead nitrate + potassium iodide
→
lead iodide + ________
________
b Zinc + copper chloride →
________ ________ + ________
c Iron + chlorine → ________
________
9 Define each of the following in relation
to a chemical reaction.
a (s)
b (l)
c (g)
d (aq)
10 Define an enzyme. 2
11 Identify three ways a chemical reaction
may be sped up.
12 Clarify by drawing a diagram the parts
of an atom of lithium which has 3
protons, 4 neutrons and 3 electrons.
Show the charge (if any) on each type
of particle.
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