G.10 Science—Chemistry
Shaftesbury High School
Chemical Reactions
Shaftesbury High School
2240 Grant Avenue
Winnipeg, Manitoba
R3P 0P7
Phone: 204-888-5898
Fax: 204-896-5492
http://www.pembinatrails.ca/shaftesbury/
G.10 Science—WHMIS and MSDS
Shaftesbury High School
Reading the MSDS for Copper (II) Sulfate
1. What is another name for copper (II) sulphate?
2. Write the chemical formula for the compound.
3. What is the telephone number for 24 hour emergency service?
4. Circle the WHMIS symbol below that is appropriate to describe the effects of ingestion
of this chemical.
Reading the MSDS for Methyl Alcohol
1. What is a synonym for methyl alcohol?
2. How and where should the product be stored?
3. What are the target organs for repeated exposure?
4. Circle the WHMIS symbol below that appropriately matches the following statement
found in Section IV of the MSDS for methyl alcohol.
“vapours formed from this product are heavier than air and may travel
along the ground to a distant source of ignition and flash back instantly”
Reading the MSDS for Lithium Nitrate
1. Describe the appearance of this chemical.
2. Write the chemical formula for the compound.
3. Which substances are incompatible with this lithium nitride?
4. Circle the WHMIS symbol below that is appropriate to describe what happens when
this chemical is combined with water.
G.10 Science—Balancing Equations
Shaftesbury High School
Balancing Chemical Reactions
Step 1:
Step 2:
Step 3:
Balance the following equation.
_____ Mg + _____ O2
_____ MgO
Tips on Balancing Equations
•
_____ FeCl3 + _____ CuS
_____ Fe2S3 + _____ CuCl2
Tips on Balancing Equations
•
_____ C3H8 + _____ O2
_____ CO2 + _____ H2O
Tips on Balancing Equations
•
_____ Mg(NO3)2 + _____ K3PO4
_____ Mg3(PO4)2 + _____ KNO3
G.10 Science—Balancing Equations Worksheet
Shaftesbury High School
Balance the equations below:
1)
____ N2 + ____ H2
____ NH3
2)
____ KClO3
3)
____ NaCl + ____ F2
4)
____ H2 + ____ O2
5)
____ Pb(OH)2 + ____ HCl
6)
____ AlBr3 + ____ K2SO4
7)
____ CH4 + ____ O2
8)
____ C3H8 + ____ O2
9)
____ C8H18 + ____ O2
10)
____ FeCl3 + ____ NaOH
11)
____ P + ____O2
12)
____ Na + ____ H2O
13)
____ Ag2O
14)
____ S8 + ____O2
15)
____ CO2 + ____ H2O
16)
____ K + ____ MgBr
17)
____ HCl + ____ CaCO3
18)
____ HNO3 + ____ NaHCO3
19)
____ H2O + ____ O2
20)
____ NaBr + ____ CaF2
21)
____ H2SO4 + ____ NaNO2
____ KCl + ____ O2
____ NaF + ____ Cl2
____ H2O
____ H2O + ____ PbCl2
____ KBr + ____ Al2(SO4)3
____ CO2 + ____ H2O
____ CO2 + ____ H2O
____ CO2 + ____ H2O
____ Fe(OH)3 + ____NaCl
____P2O5
____ NaOH + ____H2
____ Ag + ____O2
____ SO3
____ C6H12O6 + ____O2
____ KBr + ____ Mg
____ CaCl2 + ____H2O + ____ CO2
____ NaNO3 + ____ H2O + ____ CO2
____ H2O2
____ NaF + ____ CaBr2
____ HNO2 + ____ Na2SO4
G.10 Science—Balancing Equations Worksheet 2
Shaftesbury High School
Balance these equations!
1)
____ AlBr3 + ____ K
____ KBr + ____ Al
2)
____ FeO + ____ PdF2
3)
____ P4 + ____ Br2
4)
____ LiCl + ____ Br2
5)
____ PbBr2 + ____ HCl
6)
____ CoBr3 + ____ CaSO4
7)
____ Na3P + ____ CaF2
8)
____ Mn + ____ HI
9)
____ Li3PO4 + ____ NaBr
10)
____ CaF2 + ____ Li2SO4
11)
____ HBr + ____ Mg(OH)2
____ MgBr2 + ____ H2O
12)
____ LiNO3 + ____ CaBr2
____ Ca(NO3)2 + ____ LiBr
13)
____ AgNO3 + ____ Li
14)
____ Si(OH)4 + ____ NaBr
____ SiBr4 + ____ NaOH
15)
____ NaCN + ____ CuCO3
____ Na2CO3 + ____ Cu(CN)2
____ FeF2 + ____ PdO
____ PBr3
____ LiBr + ____ Cl2
____ HBr + ____ PbCl2
____ CaBr2 + ____ Co2(SO4)3
____ NaF + ____ Ca3P2
____ H2 + ____ MnI3
____ Na3PO4 + ____ LiBr
____ CaSO4 + ____ LiF
____ LiNO3 + ____ Ag
G.10 Science—Types of Equations
Shaftesbury High School
Types of Chemical Reactions
There are 5 types of chemical reactions that you will have to know:
1. ___________________________________
2. ___________________________________
3. ___________________________________
4. ___________________________________
5. ___________________________________
1. Synthesis Reactions
Generally:
___________________ + ___________________
___________________
Looks like this:
+
The formula that represents a synthesis reaction is:
1. 2Na + Cl2
2. HCl + NaOH
3. 2Mg + O
4. 4Cu + O2
5. 6CO2 + 6H2O
2NaCl
NaCl + H2O
_________
_________
_________
MgO
2Cu2O
C6H12O6 + 6O2
_________
_________
G.10 Science—Types of Equations
Shaftesbury High School
2. Decomposition Reaction
Generally:
___________________ +
___________________
___________________
Looks like this:
+
The formula that represents a decomposition reaction is:
1. 2Na + Cl2
2. 2NO2
2NaCl
_________
2O2 + N2
3. CaCO3
4. 4Cu + O2
5. 6CO2 + 6H2O
_________
CaO + CO2
2Cu2O
C6H12O6 + 6O2
_________
_________
_________
Explain how the egg and the turtle represent a decomposition reaction.
G.10 Science—Types of Equations
Shaftesbury High School
3. Single Replacement Reaction
Generally:
____________ + ____________
____________
+ ____________
Looks like this:
+
+
The formula that represents a single replacement reaction is:
1. 2Na + Cl2
2. AgNO + Cu
3. 2Mg + O
4. Cu + HNO3
5. Zn + 2HCl
2NaCl
CuNO + Ag
MgO
Cu(NO3)2 + H2
ZnCl2 + H2
_________
_________
_________
_________
_________
Explain how the girl dancer switching partners represent a single replacement reaction.
G.10 Science—Types of Equations
Shaftesbury High School
4. Double Replacement Reaction
Generally:
____________ + ____________
____________
+ ____________
Looks like this:
+
+
The formula that represents a double replacement reaction is:
1. Zn + 2HCl
ZnCl2 + H2
2. LiNO3 + NaOH
3. 2KCl + MgO
4. Mg + S
5. 2H2O2
LiOH + NaNO3
MgCl2 + K2O
MgS
2H2O + O2
_________
_________
_________
_________
_________
Explain how the picture above represents a double replacement reaction.
G.10 Science—Types of Equations
Shaftesbury High School
5. Combustion Reaction
The formula for a combustion reaction is:
____________ + ____________
O. + O2
1. O3
4. Mg + S
5. 2KI + Br2
+
Summary
Synthesis:
Decomposition:
Single Replacement:
Double Replacement:
Combustion:
+ ____________
_________
2. LiNO3 + NaOH
3. CH4 + 2O2
____________
LiOH + NaNO3
CO2 + 2H2O
MgS
2KBr + I2
_________
_________
_________
_________
+
G.10 Science—Types of Chemical Reactions WS
Shaftesbury High School
State whether each of the following equations represents a synthesis, decomposition, single replacement,
1)
CO2
C + O2
2)
NaCl + AgNO3
3)
S + Cl2
4)
BaCl2 + 2NaOH
5)
Zn + CuSO4
6)
CH4
7)
Pb(NO3)2 + Mg
8)
Mg + 2HCl
9)
H2SO4
10)
3CaBr2 + 2Na3P
11)
2O2 + N2
12)
2KI + Br2
13)
C6H12O6
14)
2NaF
15)
Si + O2
16)
2NaI + Pb(NO3)2
17)
NaI + Cs
18)
H2 + CO + O2
19)
Li3PO4
20)
CS2 + 2F2
NaNO3 + AgCl
SCl2
2NaCl + Ba(OH)2
ZnSO4 + Cu
C + 2H2
Pb + Mg(NO3)2
MgCl2 + H2
H2 + S + 2O2
Ca3P2 + 6NaBr
N2O4
2KBr + I2
6C + 6H2O
2Na2 + F2
SiO2
2NaNO3 + PbI2
CsI + Na
H2CO3
3Li + P + 2O2
CF4 + 2S
G.10 Science—Types of Reactions & Balancing WS
Shaftesbury High School
1)
____ NaBr + ____ Ca(OH)2
___ CaBr2 + ____ NaOH
Type of reaction: _____________________________
2)
____ NH3+ ____ H2SO4
____ (NH4)2SO4
Type of reaction: _____________________________
3)
____ C5H9O + ____ O2
____ CO2 + ____ H2O
Type of reaction: _____________________________
4)
____ Pb + ____ H3PO4
____ H2 + ____ Pb3(PO4)2
Type of reaction: _____________________________
5)
____ Li3N + ____ NH4NO3
___ LiNO3 + ___ (NH4)3N
Type of reaction: _____________________________
6)
____ HBr + ___ Al(OH)3
___ H2O + ___ AlBr3
Type of reaction: _____________________________
7) Combustion reactions always result in the formation of water. What other types of
chemical reaction may result in the formation of water? Write examples of these reactions below.
G.10 Science—Chemical Reactions Review
Shaftesbury High School
After working on this worksheet, you should be able to do the following:
1)
Given an equation, you should be able to tell what kind of reaction it is.
2)
Predict the products of a reaction when given the reactants.
Section 1: Identify the type of reaction
For the following reactions, indicate whether the following are examples of synthesis, decomposition, combustion, single displacement, double displacement, or acid-base reactions:
1)
Na3PO4 + 3KOH
2)
MgCl2 + Li2CO3
3)
C6H12 + 9O2
4)
Pb + FeSO4
5)
CaCO3
6)
P4 + 3O2
7)
2RbNO3 + BeF2
8)
2AgNO3 + Cu
9)
C3H6O + 4O2
10)
2C5H5 + Fe
Fe(C5H5)2 _________________________
11)
SeCl6 + O2
SeO2 + 3Cl2 _________________________
12)
2MgI2 + Mn(SO3)2
13)
O3
14)
2NO2
3NaOH + K3PO4
_________________________
MgCO3 + 2LiCl _________________________
6CO2 + 6H2O _________________________
PbSO4 + Fe _________________________
CaO + CO2 _________________________
2P2O3 _________________________
Be(NO3)2 + 2RbF ________________________
Cu(NO3)2 + 2Ag ________________________
3CO2 + 3H2O _________________________
2MgSO3 + MnI4 _________________________
O. + O2 _________________________
2O2 + N2 _________________________
G.10 Science—Chemical Reactions Review
Shaftesbury High School
Section 2: Practicing equation balancing
Before you can write a balanced equation for a problem which asks you to predict the
products of a reaction, you need to know how to balance an equation. Because some of
you may not fully remember how to balance an equation, here are some practice problems:
1)
__ C6H6 + __ O2
__ H2O + __ CO2
2)
__ NaI + __ Pb(SO4)2
3)
__ NH3 + __ O2
4)
__ Fe(OH)3
5)
__ HNO3 + __ Mg(OH)2
6)
__ H3PO4 + __ NaBr
7)
__ C + __ H2
8)
__ CaO + __ MnI4
9)
__ Fe2O3 + __ H2O
10)
__ C2H2 + __ H2
__ C2H6
11)
__ VF5 + __ HI
__ V2I10 + __ HF
12)
__ OsO4 + __ PtCl4
13)
__ CF4 + __ Br2
14)
__ Hg2I2 + __ O2
15)
__ Y(NO3)2 + __ GaPO4
__ PbI4 + __ Na2SO4
__ NO + __ H2O
__ Fe2O3 + __ H2O
__H2O + __ Mg(NO3)2
__ HBr + __ Na3PO4
__ C3H8
__ MnO2 + __ CaI2
__ Fe(OH)3
__ PtO2 + __ OsCl8
__ CBr4 + __ F2
__ Hg2O + __ I2
__ YPO4 + __ Ga(NO3)2
G.10 Science—Chemical Reactions Review
Shaftesbury High School
Section 3: Predicting the products of chemical reactions
Predict the products of the following reactions:
1)
__ Ag + __CuSO4
2)
__ NaI + __ CaCl2
3)
__ O2 + __ H2
4)
__ HNO3 + __ Mn(OH)2
5)
__ AgNO2 + __ BaSO4
6)
__ HCN + __ CuSO4
7)
__ H2O + __ AgI
8)
__ HNO3 + __Fe(OH)3
9)
__ LiBr + __ Co(SO3)2
10)
__ LiNO3 + __Ag
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
11)
__ N2 + __ O2
12)
__ H2CO3
13)
__ AlCl3 + __ Cs
14)
__ Al(NO3)3 + __ Ga
15)
__ H2SO4 + __ NH4OH
16)
__ CH3COOH + __ O2
17)
__ C4H8 + __ O2
18)
__ KCl + __ Mg(OH)2
19)
__ Zn + __ Au(NO2)2
20)
__ KOH + __ H2SO4
21)
__ BaS + __ PtCl2
22)
__ Na2O
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
Type:___________________________
G.10 Science—Types of Reactions Lab
Shaftesbury High School
Station 1—Sizzling Pink Liquid
Predict the products and write the balanced chemical equation given the following information.
Solid Lithium reacts with Water in a Single Replacement Reaction
Directions
1. Wear your safety goggles.
2. Make sure the safety shield is between your face and the chemicals you are mixing.
3. Do not touch the lithium with your fingers. Handle it with a scapula.
4. Completely fill a beaker with tap water and add 4 drops of phenolphthalein indicator.
Stir with a glass rod.
5. Carefully transfer 1 piece of lithium metal to the water. Record your observations of the
products below.
Observations
Clean Up
1. Rinse the solution down the drain with lots of water.
2. Clean up any spills and throw away used paper towel.
3. Leave the station clean for the next group.
Station 2—Decomposition of Hydrogen Peroxide
Predict the products and write the balanced chemical equation given the following information.
Hydrogen Peroxide decomposes and gives off Oxygen after adding solid
Black Manganese Dioxide Powder
Hint: The chemical formula for Manganese Dioxide will not appear in the
balanced chemical reaction. It only speeds up the reaction and is not used.
Directions
1. Wear your safety goggles.
2. Pour 15mL of hydrogen peroxide into a clean dry beaker.
3. Prepare a scupula with a fingernail size of black manganese dioxide powder.
4. Have your partner light the burner and ignite the wood splint.
5. Shut off the burner and blow out the splint to obtain glowing embers.
6. Add the black manganese dioxide powder to the 15mL of hydrogen peroxide.
7. Immediately insert the glowing splint into the gas above the liquid. Observe. What does
this prove is produced?
8. Record your observations of the products below.
Observations
Clean Up
1. Rinse the solution down the funnel into the nearest sink with lots of water.
2. Clean up any spills and throw away used paper towel.
3. Put the cap back on the chemicals.
4. Leave the station clean for the next group.
5. Don’t play with the flint striker! You’ll wear out the flint.
Station 3—Burning Hexanol (C6H13OH)
Predict the products and write the balanced chemical equation given the following information.
Hexanol (C6H13OH) burns in the presence of Oxygen
Directions
1. Wear your safety goggles over your eyes.
2. Dispense two droppers full of liquid into the watch glass.
3. Light a burner.
4. Ignite a wood splint in the burner flame.
5. Shut off the burner.
6. Light the liquid on fire using the flaming wood splint. Immediately blow out the splint
so that it can be reused.
7. Observe the liquid until it has completely reacted.
8. Record your observations below.
Observations
Clean Up
1. Throw away used splints only if they are too short to be reused.
2. Leave the station tidy for the next group.
3. Don’t play with the flint striker!
Station 4—Making a Blue Solid called a Precipitate
Predict the products and write the balanced chemical equations given the following information.
Aqueous Cobalt (II) Sulfate is combined with Aqueous Sodium Hydroxide
Directions
1. Wear your safety over your eyes.
2. Place 2 to 4 drops of Cobalt (II) Sulfate into a clean, dry watch glass.
3. Add 2 to 4 drops of Sodium Hydroxide. Swirl carefully to mix.
4. Record your observations of the products below.
Observations
Clean Up
1. Rinse the solution down the sink with lots of water.
2. Wipe up the watch glass clean with paper towel.
3. Throw the paper towel into the nearest garbage can.
4. Put the caps on both solutions.
5. Leave the station clean for the next group.
Station 5—Magnesium Burns?
Predict the products and write the balanced chemical equation given the following information.
Solid Magnesium reacts with Oxygen to form a white powder
Directions
1. Wear your safety goggles over your eyes.
2. Hold the piece of Magnesium with a pair of crucible tongs.
3. Light a burner.
4. Place the piece of Magnesium into the blue part of the burner flame until the Magnesium ignites. Do not stare directly at the burning Magnesium.
5. Record your observations of the products below.
6. Don’t play with the flint striker!
Observations
Clean Up
1. Wipe the powder of the crucible tongs and the counter with a piece of paper towel.
2. Discard any bits of Magnesium ribbon into the nearest garbage can.
3. Throw the paper towel into the nearest garbage can.
Balanced Chemical Equations
Record the balanced chemical equations, including phase subscripts for each of the 5
chemical reactions.
Station 1:
Station 2:
Station 3:
Station 4:
Station 5: