9/26/11 64 Balancing Equations Activity 10/15/2015 63 Balancing Equations Activity 10/15/2015...
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. 9/26/11 64 Balancing Equations Activity 10/15/201 5 63 Balancing Equations Activity 10/15/2015 . . Starter: Arrange molecules into an equation: 2 Ag, 2 AgCl, 2 Cl, Application: Balancing Act Ws Turn in when complete Connection: How is balancing equations like something you have done in math? Exit: 2 H + CO 3 → H 2 O +2CO 2 Draw out this equation in your journal. Draw the atoms. Is this balanced or unbalanced? What does this have to do with the Practice: Glue Balancing Act Notes/ Practice here EQ: How do chemical reactions obey the law of conservation of mass?
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Transcript of 9/26/11 64 Balancing Equations Activity 10/15/2015 63 Balancing Equations Activity 10/15/2015...
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9/26/1164 Balancing Equations Activity
10/15/2015
63 Balancing Equations Activity
10/15/2015
..Starter:
Arrange molecules into an equation: 2 Ag, 2 AgCl, 2 Cl,
Application:
Balancing Act Ws
Turn in when complete
Connection:How is balancing equations like something you have done in math?
Exit: 2 H + CO3 → H2O +2CO2 Draw out this equation in your journal. Draw the atoms. Is this balanced or unbalanced? What does this have to do with the conversation of mass?
Practice: Glue Balancing Act Notes/ Practice here
EQ: How do chemical reactions obey the law of conservation of mass?
October 15, 2015
AGENDA8.5 F.
I will be able to recognize whether a chemical equation
containing coefficients is balanced or not and
how that relates to the law of
conservation of mass by reading, and
writing while completing notes and
activity.
1 Starter2. Notes3. Activity 4. Exit
Date Lecture/ Activity/ Lab Page10/8 Practice Writing Chemical Formulas 57-5810/12 Writing Chemical Formulas 59-6010/13 Chemical Equations and the Conservation of Mass 61-6210/15 Balancing Act 63-64
Table of Contents
Balancing Act
Na + Cl salt
Law of Conservation of Mass
Atoms are not ___________ or __________During a chemical reaction. Scientist know
that there must the ________ number of atoms on each _______ of the _________. To balance the chemical equation, you must add _________________ to the different parts of the equation. You cannot _______ or __________ subscripts.
created destroyed
sameside arrow
coefficientsadd
remove
Step 1: Determine the number of atoms for each element
Mg + O2 MgO
Mg = Mg=
O= O=
1
2
1
1
Step 2: Try to add Coefficients to the equation to get the same number of atoms on each side.
Mg + O2 MgO
Mg = Mg=
O= O=
1
2
1
1
22
2
22
Balanced!!!
Equation 1: Determine the number of atoms for each element
Ca + O2 CaO
Ca = Ca=
O= O=
1
2
1
1
Equation 1: Try to add Coefficients to the equation to get the same number of atoms on each side.
Ca + O2 CaO
Ca = Ca=
O= O=
1
2
1
1
22
2
22
Balanced!!!
Equation 2.
N2 + H2 NH3
N = N=
H= H=
2 1
2 3
2
2
6
3
6
Balanced!!!
Equation 3.
Cu2O + C Cu + CO2
Cu = Cu =
O= O=
C= C=
2 1
1 2
1 1
2
2
2
2
4
4
4
Balanced!!!
Equation 4.
H2O2 H2O + O2
H = H =
O= O=
2 2
2 3
2
4
4
2
4
4
Balanced!!!
.
9/26/1164 Balancing Equations Activity
10/15/2015
63 Balancing Equations Activity
10/15/2015
..Starter:
Arrange molecules into an equation: 2 Ag, 2 AgCl, 2 Cl,
Application:
Balancing Act Ws
Turn in when complete
Connection:How is balancing equations like something you have done in math?
Exit: 2 H + CO3 → H2O +2CO2 Draw out this equation in your journal. Draw the atoms. Is this balanced or unbalanced? What does this have to do with the conversation of mass?
Practice: Glue Balancing Act Notes/ Practice here
EQ: How do chemical reactions obey the law of conservation of mass?
