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77. Balancing Equations. 78. Balancing Equations. 9/26/11. 10/28/2013. 10/28/2013. Practice/Application/Connection/ Paste Notes/Quiz here when graded: Exit : In the following equation, the elements are rearranged to form new products. What should be placed in the box to the right?

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9 26 11

77

Balancing Equations

78

Balancing Equations

9/26/11

10/28/2013

10/28/2013

  • Practice/Application/Connection/

  • Paste Notes/Quiz here when graded:

  • Exit:

  • In the following equation, the elements are rearranged to form new products. What should be placed in the box to the right?

  • C+ O2

Starter:

Label the parts of the equation:


9 26 11

October 25, 2013AGENDA8.5 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 Starter

2. Activity


Label the parts of the equation

Label the parts of the equation

Chemical Formula

Coefficient

subscript

yields

Element


9 26 11

Table of Contents

DateLecture/ Activity/ Lab Page

9/25 Metal, Nonmetals, and Metalloids 41-42

9/26 Where’s Al? 43-44

9/27 Element Wanted Poster 45-46

9/30 Bohr Model Challenge 47-48

10/1 Periodic Table Notes/Puzzles 49-50

10/2 Periodic Table Chart 51-52

10/3 Test Review 53-54

10/8 Test Corrections 55-56

10/9 Molecules, Compounds, and Elements 57-58

10/10 Build a Molecule Activity 59-60

10/15 Counting Atoms 61-62

10/16 Counting Atoms with Coefficients 63-64

10/17 Writing Chemical Formulas65-66

10/18 Physical and Chemical Changes/Properties Notes 67-68

10/21 Chemical Equations and the Conservation of Mass 69-70

10/22 Balancing Equations 71-72

10/24 Beady Balance 73-74

10/25 See Saw Poster 75-76

  • Oct 28 Signs of a Chemical change 77-78


Signs of a chemical change

Signs of a Chemical Change

Gas Formation

Energy

Change

Color Change

Sound/ light

Precipitate


Precipitate formation of a solid

PRECIPITATEFormation of a Solid

  • A precipitate is a solid formed in a chemical reaction that is different from either of the reactants.


Energy temperature change

ENERGYTemperature Change

When two substances are combined, any increase or decrease in temperature is a sign of a chemical change. The temperature may change very suddenly or occur over a long period of time.

If the temperature rises and gives off heat, the reaction is said to be exothermic.

A drop in temperature indicates that the reaction is endothermic.


Color change

COLOR CHANGE

  • A reaction has occurred if two solutions are mixed and there is a color change that is not simply the result of a dilution of one of the reactant solutions.


Sound light

.

SOUND/ LIGHT

When a substance is altered, light and sound indicate quick changes in temperature. A fireworks display is a good example of the presence of light and sound during a chemical reaction.


Bubbles gas formation

BUBBLESGas Formation

  • If the reaction between two liquids or a solid and a liquid gives off gases, it is likely that a chemical change has occurred. Small bubbles that form inside the liquid underneath the surface are enough to indicate a chemical reaction is taking place.


Remember it

Remember IT!

Please Excuse Coughs Sneezes and Burps

P- Precipitate- Solid formation

E- Energy Change-Temperature

C- Color Change

S- Sound/ Light

B- Bubbles- Gas Formation


Spooky video quiz

Spooky Video Quiz

Describe how you know that a chemical reaction is happening.


9 26 11

What clues helped you determine your answer?

  • Dragon Breath

    2. Genie in a bottle

    3Pumpkin Brains

4. Instant Worms

Self Carving Pumpkin

Liquid Light


9 26 11

77

Balancing Equations

78

Balancing Equations

9/26/11

10/28/2013

10/28/2013

  • Practice/Application/Connection/

  • Paste Notes/Quiz here when graded:

  • Exit:

  • In the following equation, the elements are rearranged to form new products. What should be placed in the box to the right?

  • C+ O2

Starter:

Label the parts of the equation:


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