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PRACTICE QUIZ
1. An ionic compound always involves a ________________ and one or more
__________________.
2. Which elements on the periodic table are diatomic? (Example: X2, where X is the
chemical symbol.) ________________________________________________________
3. Are the following compounds molecules or ionic compounds?
a. Na2SO4
b. NH3
c. C3H6O3
4. Write formulas for the following:
a. Potassium hydroxide
b. Lithium sulfide
c. Magnesium nitrate
d. Cobalt(II) nitrite
e. Zinc(II) iodide
f. Barium sulfate
g. Aluminum sulfite
h. Calcium nitride
5. Give the formulas for the following compounds.
a. Phosphorus trichloride
b. Dinitrogen trioxide
c. Tetraphosphorus heptoxide
d. Bromium trifluoride
6. Balance the following equations.
a. ___ CO2 + ___ H2O → ___ C6H12O6 + ___ O2
b. ___ NH4NO3 → ___ N2 + ___ O2 + ___ H2O
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