Download Name________________ Hour____ Chapter 11 Review 1. Name

Name________________ Hour____
Chapter 11 Review
Chemical Equations and Reaction Types
1. Name/write the formula for the following chemicals.
a. bromine gas
c. Al2S3
e. plumbic oxide
Br2
Aluminum Sulfide
PbO2
b. dichromic acid
d. P5O10
f. dicarbon tetroxide
H2Cr2O7
Pentaphosphorous decaoxide
C2O4
2. Write in Words:
MnO
FeSO4 (aq) + Ba(NO3)2 (aq)
→
g. I2
iodine gas
h. HOH
water
Fe(NO3)2 (aq) + BaSO4 (s)
1 formula unit of aqueous iron(II) sulfate reacts with 1 formula unit of aqueous barium nitrate in the presence of
magnesium(II) oxide catalyst to produce 1 formula unit of aqueous iron(II) nitrate and 1 formula unit of solid
barium sulfate.
3. Write in Words:
2Al ( ) + 6HOH(l) à 3H2 ( ) + 2Al(OH)3 (s)
↓
↑
2 atoms of solid aluminum react with 6 molecules of liquid water to produce 3 molecules of hydrogen gas and 2
formula units of solid aluminum hydroxide.
4. Write in symbols: 2 formula units of solid lead (IV) oxide decomposes in the presence of heat to
produce 2 formula units of solid lead (II) oxide and 1 molecule of oxygen gas.
Δ
2PbO2(s)
à
2PbO(s)+
O2(g)
5. Write in symbols: 1 molecule of hydrogen gas reacts with 1 molecule of chlorine gas using magnesium and
heat as a catalyst to yield 2 formula units of hydrochloric acid solution.
Δ/Mg
H2(g)
+
Cl2(g)
à
2HCl(aq)
6. Analyze the following unbalanced chemical equation:
____CO + ____O2 à ____CO2
a. Identify the product(s)
Carbon dioxide
h. List all of the coefficients in the reaction 2,1,2
b. What does the à mean? Produces, yeilds
i. Name the compound on the product side
c. Is a catalyst used? How do you know?
Carbon dioxide
No, it would be written above the arrow
j. How many total atoms are reacting? 6
d. Name the element in the reaction. Oxygen
k. How many total atoms are produced? 6
e. Name the compound on the reactant side. Carbon monoxide l. Which substances have double/triple
g. List all of the subscripts in the reaction 2,2
bonds? All have double/triple bonds
7. What are the sneaky seven elements? List all formulas and explain why they are also known as “diatomic”
elements.
Hydrogen
H2
Nitrogen
N2
Oxygen
O2
Fluorine
F2
Chlorine
Cl2
Diatomic because when they are alone they always exist in pairs.
Bromine
Br2
Iodine
I2
8. For each of the following (1) name reaction type (2) determine products (3) balance
REACTION TYPE
a.
2KClO3
→
2KCl +
b.
2NaCl +
F2
c.
2H2
à
Cl2
+
O2
à
2H2O
d.
(NH4)2CrO4
+
Na2SO4
e.
2C8H18 +
25O2 à
f.
2Al2O3
g.
2Na
h.
Fe2(CO3)3
10.
Write the following word equations as chemical equations and balance. Classify the reaction type.
+
à
2H2O à
+
16CO2
2NaF
SR-A
(NH4)2SO4
+
+
2NaOH
3H2SO4 à Fe2(SO4)3
+
Decomposition
Combination
à
4Al
3O2
+
Na2CrO4
18H20
Double Replacement
Combustion
3O2
Decomposition
+
H2
SR-C
+
3H2CO3
Double Replacement
a. aluminum bromide + chlorine à aluminum chloride + bromine
2AlBr3 +
3Cl2
à
AlCl3
+
3Br2
SR-A
b. copper + sulfuric scid à copper (II) sulfate + hydrogen gas
Cu
H2SO4 à
+
CuSO4
+
H2
SR-C
11. For each of the following possible reactions, write the products with states and then balance. If no reaction
occurs, indicate and explain why.
a. Al2(SO4)3 +
b. Hg(NO3)2
à
3 Ca
3CaSO4
+
2Al
+ 2Ag
à
2AgNO3
+
Hg
No reaction, Ag is not strong enough to replace Hg. Ag is lower on the reactivity series
c. 2Fe (III)
+
3CuCl2
à
3Cu
+
2FeCl3
d. 2KBr
+
I2
à
2 KI +
Br2
No reaction, iodine is not strong enough to replace bromine.
e. H2SO4
+
2NaOH à
2HOH
+
Na2SO4
f. (NH4)3PO4 +
3KNO3 à
3NH4NO3
+
K3PO4
13. Define the Law of Conservation of Mass and be able to apply it to balanced chemical equations.
Mass cannot be created or destroyed. In a balanced chemical equation you need to start and end with the
same number of atoms of each element.
Name________________ Hour____
Chapter 11 Review
Chemical Equations and Reaction Types
14. Know how to use the splint test. What are the 3 gases that the splint test can identify and which
observations identify each one?
H2
CO2
O2
=
=
=
Splint “pops”
Splint goes out
Splint flame stays lit or gets bigger
15. What must happen in order for a double replacement reaction to take place?
A gas, solid, or water must form
16. Predict the reactants using words and write a balanced chemical equation.
a. methanol (CH3OH) + oxygen à carbon dioxide + water
b. Copper(I) + oxygen à cuprous oxide
c. Sodium carbonate + hydrochloric acid à carbonic acid + sodium chloride
d. Alumnium + water à aluminum hydroxide + hydrogen
e. Barium chloride à barium + chlorine