Name _______________________________________________ period _____ date ___________________
Chemical reactions review
I. Fill in the blanks with the most appropriate term:
A _____________________
________________ tells the story of a chemical reaction. ________________
are the starting substances in the reaction while ________________ are the new substances that are formed.
The large numbers in front of some of the formulas are called ________________. These numbers are used
to ________________ the equation because chemical reactions must obey the Law of __________________
of Matter. The number of atoms of each element on both sides of the equation must be ________________
because matter cannot be ________________ or ________________. When balancing equations, the only
numbers that can be changed are _____________________; remember that __________________________
must never be changed in order to balance an equation.
II. Balance and classify the following equations:
1. ____Al
+
_____O2
→
_____ Al2O3
2. ____C3H8
+
_____ O2
→
____ CO2
3. ____KNO3
→
____ KNO2
+
____ O2
4. ____KOH
+
____H3PO4
→
____ K3PO4
5. ____BaF2
+
____K3PO4
→
____ Ba3(PO4)2 +
+
____ H2O
+
____ H2O
____ KF
III. Predict the products in each of the following synthesis, decomposition or combustion reactions.
1. Ba + N2
→
2. H2CO3
→
3. C3H8 + O2
→
4. LiCl + O2
→
5. CuF
→
IV. Predict the products in each of the following single replacement reactions. If no reaction occurs,
write NR.
1. Pt
+ MgBr2
→
2. Sn
+ CaS
→
3. NaI + F2
→
4. Zn
+ AgNO3
→
5. Fe2SO4 + Cu
→
6. H2CO3
→
+
Li
V. Predict the products in each of the following reactions. Using the solubility chart, determine if a
precipitate forms (insoluble compound) and circle it. If no reaction occurs, write NR.
1. Ba(NO3)2
+
H2SO4
→
2. FeCl2
+
(NH4)3PO4
→
3. NaClO3
+
K2S
→
4. AlBr3
+
MgI2
→
5. K2CO3
+
SrO
→
V. Choose two of the reactions from the previous section (IV) and write the complete balanced
equation, complete ionic equation and net ionic equation for each.