“Nomenclature”
A. Directions: Match the terms listed with their description. Write the correct letters on the lines provided.
___ 1. Binary compounds
___ 2. Hydrocarbons
___ 3. Sulfur Hexafluoride
___ 4. Aluminum arsenate
___ 5. Baking Soda
___ 6. Meth-
___ 7. Copper(II)oxide
___ 8. Common acids
___ 9. Cyclopentane
___ 10.Nitrogen
a. Example of a binary compound formed from a metallic element with variable oxidation states.
b. Indicates one carbon atom.
c. Organic compounds composed solely of H and C.
d. Forms five different binary compounds with oxygen.
e. Common name of sodium hydrogen carbonate.
f. Has five carbon atoms linked in a ring.
g. Compounds that contain only two elements.
h. Common name of a compound containing six fluorine atoms.
i. Have names that do not normally follow the rules for naming compounds.
j. Demonstrates the rule that the name of the polyatomic ion does not end in –ide
B. Directions: Complete the table by filling in the missing names.
Compound formula Name
1.KCl 1.
2.ZnCO3 2.
3.C4H10 3.
4.FeCl3 4.
5.N2O3 5.
C. Directions: Complete the sentences or answer the question.
1.What is the difference between a molecular formula and an empirical formula? ____________________________________
________________________________________________________.
2.The formulas for ionic compounds are almost all ________ formulas.
3.The molecular formula of a compound is always a whole-number multiple of the __________ formula.
4.What is the empirical formula for N2O4? ______________________.
5.How would you use the symbols to designate three formula units of zinc sulfide? __________________________________
D. Directions: answer each of the following.
1. What is the most common source for an elements name? What are three other possible sources for the name of an element?
______________________________________________________________________________________________________
E. Directions: Complete the table by filling in the missing name or chemical symbol of each element shown.
Element Symbol
1.Potassium 1.
2.Gold 2.
3.Phosphorus 3.
a. What element does the symbol 40 over 20 Ca represent? ___________.
b. What is this elements mass number? ________________________.
c. How many protons, electrons, and neutrons does the element contain? ________________________________________________.
d. What would the charge be if an atom of this element lost two electrons? _______________________________________________.
Chemical Formula Names of elements in compounds Relative # of atoms
1.NH3
2.C12H22O11
3.ZnF2
4.Fe2O3
G. Directions: Write T for True or F for False. If the statement is false, change the underlined word(s) to make the statement correct by writing the correct word(s) on the blank.
___________ 5. ATOMS are electrically charged particles.
___________ 6. In the formula of an ionic compound, the NEGATIVE ion is written first.
___________ 7. The charge on the DIATOMIC MOLECULE is called its oxidation number.
H. Directions: Write the formulas of the compounds that will be formed when the positive ions listed in the table below combine with each of the negative ion listed.
NO3 S2 OH- Cl-
Al3+
NH4
Pb4+