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Chemistry Practice Problems
Compounds: Elements vs. Compounds
Solutions: 1. Label each of the following as atomic element, molecular element, molecular
compound, or ionic compound.
a. N2 – molecular element (contains two or more atoms of the same
element)
b. Ag – atomic element (contains one atom)
c. NaCl – ionic compound (contains metal and nonmetal elements)
d. CO2 – molecular compound (contains only nonmetallic elements)
e. MgBr2 – ionic compound (contains metal and nonmetal elements)
f. BaI2 – ionic compound (contains metal and nonmetal elements)
g. S8 – molecular element (contains two or more atoms of the same
element)
h. B – atomic element (contains one atom)
i. Co – atomic element (contains one atom)
j. CH4 – molecular compound (contains only nonmetallic elements)
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