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Reactions/Equations
Tentative Schedule
Name:
Goal: Students gain an understanding of chemical formulas, solutions, molecular formulas, and balanced
equations and reactions.
Objectives: Demonstrate knowledge of the mole concept/stoichiometry.
Upon completion of the reading and problems, and when asked to demonstrate their understanding either
orally or on a written test, students will:
1. Define or identify the following:
chemical equation
coefficient
double replacement
single replacement
decomposition
products
reactants
synthesis
activity series
2. Write chemical equations
3. Balance chemical equations
4. Identify types of chemical equations
5. Balance redox equations
6. Determine the energy within a given equations
Day 55
1.
2.
3.
4.
5.
Thursday, April 18, 2013 What is an equation? What has to be true?
Atomic Stoichiometry quiz
Intro to equations (wkst 1)
Formula equations
Balancing equations (wkst 2)
cw/hw: worksheets 1 & 2
- ChemThink Chemical Reactions Tutorial (4/23/13)
- ChemThink Chemical Reactions Questions (due 4/24/13)
Watch:
http://www.youtube.com/wat
ch?v=DfwX5qzCKwc&featu
re=youtu.be
Day56 Friday, April 19, 2013 What are the types of reactions?
1. Go over homework
2. Balancing Equations
- Trial and Error vs. Algebraically
3. Cw/hw – word equations (wkst 3)
- Balancing (wkst 4)
- Watch the youtube video of chemical reactions:
http://www.youtube.com/watch?v=DfwX5qzCKwc&feature=youtu.be
Day57, Monday, April 22, 2013
1. Quiz – writing and balancing equations
2. Balancing practice wkst5
3. cw/hw – balancing practice (wkst 5)
- Classification of chemical reactions (wkst 6)
- if you made below a “C” (less than 52/67) on the last test write the polyatomic ions 5x each
Day58,
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6.
Tuesday, April 23, 2013 What are the products of combustion reactions?
Quiz – Polyatomic Ions
Race - Balancing Chemical Equations
Synthesis
Decomposition
Combustion
cw/hw – Synthesis and Decomposition and Combustion worksheet 7
- ChemThink Chemical Reactions Tutorial due 4/23/13
- Pre-lab To form or not to form (B)
Day59,
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3.
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Wednesday, April 24, 2013 Why is an activity series needed for single replacement reactions?
Go over homework
Single replacement/displacement
Activity series
Lab Activity (no contacts) — To Form or Not To Form(B)
cw/hw: ChemThink Chemical Reactions Questions due 4/24/13
Single Replacement (wkst9)
Day60,
1.
2.
4.
5.
Thursday, April 25, 2013 What are the solubility rules used for? How?
Go over homework
double replacement/displacement (wkst 10)
Lab Activity — Typhoid who? OR Id or ion (C)
cw/hw: worksheet 4 and 11 (identify the type of reaction for worksheet 4 – complete worksheet 11)
Pre-LAB - TYPES OF CHEMICAL REACTIONS (D)
Day61 Friday, April 26, 2013 What is the activity series?
1. Go over homework
2. Predicting products of chemical reactions (wkst 12)
3. Lab activity (no contacts) — Types of Chemical Reactions (D)
4. cw/hw: Complete types of reactions lab
- Voyage through Equations worksheet 13
- Pre-LAB - COPPER CYCLE (E)
Day62
1.
2.
3.
4.
Monday, April 27, 2013: Why are pre-labs required? What is a copper cycle?
Go over homework
Writing Complete Equations Practice
Lab activity (no contacts) — Copper cycle (E)
cw/hw: Study for test
Complete labs including conclusions
Day 63 Tuesday, April 28, 2013: How do I demonstrate my understanding and knowledge of chemical
equations and atomic stoichiometry?
TEST ☺
Worksheet 1
Use your text and ChemThink to complete the following worksheet.
chemical equation
chemical reaction
coefficient
decomposition
double displacement
products
single displacement
synthesis
subscript
reactants
____________________ 1. The starting substances in a chemical reaction are
____________________ 2. Two or more substances combine to form one new substance in ____ reactions.
____________________ 3. The process by which one or more substances are changed into one or more different substances is
called _____
_____________________ 4. In the chemical reaction known as ______, one element displaces another in a compound.
____________________ 5. The breaking up of substances into simpler substances upon the supplying of energy is called ___
____________________ 6.The term referring to the substances formed by a chemical reaction, is —.
____________________ 7. The positive and negative portions of two compounds are interchanged in ___ reactions.
____________________ 8. The number appearing before the formulas in a chemical equation that stands for the ratio of the
substances involved is the _____
____________________ 9. A(an) ___ is used to show how many ions of each type are in the formula and should NEVER be
changed to balance an equation.
Write the following word equation, but do not balance them.
1. A compound composed of 52.5% potassium and 47.5% chlorine reacts with silver nitrate to yield potassium
nitrate and silver chloride
2. sodium and bromine yields sodium bromide.
3. zinc metal and oxygen gas produces zinc oxide.
4. sodium chloride yields chlorine gas and sodium metal
5. sodium bromide plus chlorine yields sodium chloride and bromine.
6. sodium hydrogen carbonate yields sodium carbonate and carbon dioxide plus water
Worksheet 2
Balancing Equations
1)________HNO3 +
___________Ba(OH)2 →_________H20
2) _______C2H30H
+ _______O2 →
_________CO2 +
+ ______________ Ba(NO3)2
_________ H20
3) _________SiF4 + _________H20 → _________ H2SiF6
+_________H2SiO3
4)__________ Mg3B2 + ________ H2O →_________ Mg(OH)2 + ___________ B2H6
5)____________ *2$3 + ___________ % →_________ *% + ____________ $2
6)___________ Si02 + _________ HF →_________ SiF4 + ____________ H2O
7)___________ XeF6 + __________ Si02 →_________ SiF4 + __________ XeOF4
Write and balance equations for each of the following:
8) Iron (III) iodide reacts with copper (II) nitrate to produce iron (III) nitrate and copper (II) iodide.
9) Ammonium phosphate reacts with lithium hydroxide to produce ammonium hydroxide and lithium phosphate.
Worksheet 7
Synthesis and Decomposition Problems
A. Write and balance the following equations.
1. potassium oxide plus water
2. sodium plus fluorine
3. carbon dioxide plus water
4. hydrogen plus chlorine
5. potassium bicarbonate (heated)
6. sodium chloride (electrolyzed)
7. magnesium chlorate(heated)
8. calcium hydroxide(heated)
9. aluminum chloride(electrolyzed)
10. water(electrolyzed)
11. Lithium bromide dihydrate (heated)
12. lead(IV) oxide(heated)
Worksheet 8
Complete and balance these combustion reactions.
1) _________C3H8(g) + _________O2 →_________ CO2 + ______H2O
2) _________ CH3OH + _________O2 →_________ CO2 + ______H2O
3) ___________ CH4(g) + _________O2 →_________ CO2 + ______H2O
4) ___________
C4H10(g) + _________O2 →_________ CO2 + ______H2O
Worksheet 9
Single-Replacement Reactions
Step 1 - Write the formulas of the reactants on the left of the yield sign
Step 2 - Look at the Activity Series to determine if the replacement can happen
Step 3 - If the replacement can occur, complete the reaction and balance it. If the reaction
cannot happen, write N.R. (no rxn) on the product side.
1. lead + zinc acetate 
2. iron + aluminum oxide 
3. silver nitrate + nickel 
4. sodium bromide + iodine 
5. aluminum bromide + chlorine 
6. sodium iodide + bromine 
7. calcium + hydrochloric acid 
8. magnesium + nitric acid 
9. silver + sulfuric acid 
10. potassium + water 
11. sodium + water 
Worksheet 10
Double-Replacement Reactions
In these reactions, all you do is look at the names of the reactants, and "switch partners".
Just be sure that the new pairs come out with the positive ion named first, and paired with a
negative ion.
1. aluminum iodide + mercury(II) chloride 
2. silver nitrate + potassium phosphate 
3. copper(II) bromide + aluminum chloride 
4. calcium acetate + sodium carbonate 
5. ammonium chloride + mercury(I) acetate 
6. calcium nitrate + hydrochloric acid 
7. iron(II) sulfide + hydrochloric acid 
8. copper(II) hydroxide + acetic acid 
9. calcium hydroxide + phosphoric acid 
10. calcium bromide + potassium hydroxide 
Examine the products of the reactions on this page, and determine in each whether a gas, water, or a
precipitate is formed. Use solubility table to determine the solubilities of the reaction products. If there is no
gas, water, or precipitate produced, put an "X" through the yield sign, because no reaction occurs.