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8.5F balancing_chemical_equations Practice.notebook
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December 15, 2014
Nov 410:28 AM
Teachers' notesLesson objectives Teacher's notes con't
Balancing Chemical Equations
1) TEKS: 8.5F recognize whether a chemical equation containing coefficients is balanced or not and how that relates to the law of conservation of mass.Prior Knowledge:Students should be able to define atoms, elements, molecules, and compounds before beginning this assignment. They should also have a general understanding of the periodic table of elements.
Nov 410:28 AM
Subject:
Grade(s):
Topic:
CrossCurricular Links:
Chemistry
8
Lesson notes:
Chemical Equations
.
Intended Learning Outcome:
Lesson Objectives Teacher's notes con'tTeacher's notes
This lesson is an introduction to balancing chemical equations. This assignment helps show how compounds are a unit and can be added only as groups.
Instructions:
Each slide contains a chemical equation. Students are to balance the equation by cloning the graphic element boxes so that there are equal amounts of all atoms on both sides. When this is accomplished, the coefficients should be written in the equation.
Slide 5 contains a video tutorial on balancing equations. The video solves the same chemical equation shown on that slide.
Nov 410:28 AM
Lesson notes continued:
The compounds/molecules are already created on each slide; however, the teacher could choose to build them with his or her students to represent how the atoms are grouped.
Lesson Objectives Teacher's notes Teacher's notes con't
Optional Enhancement:
Edited by: Lisa Jackson, ITS, NEISDAuthored by: Bret Gensburg, University of Akron
Pull he
re fo
r molecule an
d eq
uatio
n samples
Ungroup this object. Then copy/paste and ungroup these objects as you need for creating your own equations.
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8.5F balancing_chemical_equations Practice.notebook
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December 15, 2014
Apr 133:48 PM
Jan 35:19 PM
Answer2H2 + O2 2H2O
EXAMPLE: Balance the following equation. A balanced equation has the same number of atoms of each element on both sides of the equation. Clone the molecules which contain atoms of which you do not have enough. Then count the molecules and write the coefficient in the chemical equation.
balancing chemical equations.avi
Work through this sample together, or click on the video file below to watch, listen, and learn how to balance a chemical equation.
Vide
o Tu
toria
l
__H2 +__O2 __H2O
Jan 35:19 PM
Balance the following equation so that there are the same number of atoms on each side of the yield sign. (Clone the molecules as needed.) Click on the answer box to reveal the answer. What numbers should be added to the equation, if any? Write them in the spaces below.
AnswerCaCO3 CaO + CO2
__CaCO3 __CaO + __CO2
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8.5F balancing_chemical_equations Practice.notebook
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December 15, 2014
Jan 35:19 PM
AnswerC + 2Cl2 CCl4
Balance the following equation.
__C + __Cl2 __CCl4
Jan 35:19 PM
AnswerH2 + Cl2 2HCl
Balance the following equation.
__H2 + __Cl2 __HCl
Jan 35:19 PM
Answer2Na + F2 2NaF
Balance the following equation.
__Na + __F2 __NaF
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8.5F balancing_chemical_equations Practice.notebook
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December 15, 2014
Jan 35:19 PM
Answer2H2O2 2H2O + O2
Balance the following equation.
__H2O2 __H2O + __O2
Jan 35:19 PM
Answer2KClO3 2KCl + 3O2
Balance the following equation.
__KClO3 __KCl + __O2
Jan 35:19 PM
Answer4P + 5O2 P4O10
Balance the following equation.
__P + __O2 __P4O10
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8.5F balancing_chemical_equations Practice.notebook
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December 15, 2014
Jan 35:19 PM
AnswerBaCl2 + H2SO4 BaSO4 + 2HCl
Balance the following equation.
__BaCl2 + __H2SO4 __BaSO4 + __HCl
Jan 35:19 PM
AnswerN2 + 3H2 2NH3
Balance the following equation.
__N2 + __H2 __NH3
Jan 35:19 PM
Answer2Na + Cl2 2NaCl
Balance the following equation.
__Na + __Cl2 __NaCl
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8.5F balancing_chemical_equations Practice.notebook
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December 15, 2014
Jan 35:19 PM
Answer3Fe + O2 Fe2O3
Balance the following equation.
__Fe + __O2 __Fe2O3
Apr 223:26 PM
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Attachments
balancing chemical equations.avi
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