. 9/26/11 62 Chemical Equations 10/14/2014 61 Chemical Equations 10/14/2014 . . Starter: Application Name the reactants in the following equations 2Mg + O 2 2MgO C + O 2 CO 2 2H 2 + O 2 2H 2 O Name the products in the following equations 2CO + O 2 2CO 2 N 2 H 4 + O 2 N 2 + 2H 2 O C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O Connection: 12 oz of dough, 4 oz mushrooms, 12 slices pepperoni, 8 oz cheese and 5 oz tomato sauce are used to make a pizza. Write a recipe in words for putting together a pizza. How would you write the recipe as an equation? Exit: Write the equation for hydrogen and oxygen to water and label it Label: reactants, Practice: Notes: Paste Here Finish Chemical Formulas from yesterday (15 mins) Identify the following molecule. Write the chemical formula and how many atoms of each element are in it.
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. 9/26/11 62 Chemical Equations 10/14/2014 61 Chemical Equations 10/14/2014 Starter: Application Name the reactants in the following equations 2Mg + O.
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9/26/1162 Chemical Equations
10/14/2014
61 Chemical Equations
10/14/2014
..
Starter: ApplicationName the reactants in the following equations2Mg + O2 2MgOC + O2 CO2
2H2 + O2 2H2O
Name the products in the following equations2CO + O2 2CO2
N2H4 + O2 N2 + 2H2OC6H12O6 + 6O2 6CO2 + 6H2O
Connection:12 oz of dough, 4 oz mushrooms, 12 slices pepperoni, 8 oz cheese and 5 oz tomato sauce are used to make a pizza. Write a recipe in words for putting together a pizza. How would you write the recipe as an equation?
Exit:Write the equation for hydrogen and oxygen to water and label it Label: reactants, products, coefficients, subscripts, Chemical equation, elements, and compounds.
Practice: Notes: Paste Here
Finish Chemical Formulas from yesterday (15 mins)
Identify the following molecule. Write the chemical formula and how many atoms of each element are in it.
Date Lecture/ Activity/ Lab Page9/25 Metal, Nonmetals, and Metalloids 41-429/26 Where’s Al? 43-449/27 Element Wanted Poster 45-469/30 Bohr Model Challenge 47-4810/1 Periodic Table Notes/Puzzles 49-5010/2 Periodic Table Chart 51-5210/3 Test Review 53-5410/8 Test Corrections 55-5610/9 Molecules, Compounds, and Elements 57-5810/10 Build a Molecule Activity 59-6010/15 Counting Atoms 61-6210/16 Counting Atoms with Coefficients 63-6410/17 Writing Chemical Formulas 65-66 10/18 Physical and Chemical Changes/Properties Notes 67-6810/21 Chemical Equations and the Conservation of Mass 69-70
Table of Contents
Chemical Equations & the Law of Conservation of
Mass
6H2O + 6CO2 C6H12O6+ 6O2
Water + Carbon Dioxide Sugar + Oxygen
Decide whether the following statements are physical changes or chemical changes.
A bicycle left out in the rain begins to rust.Chemical
A match burns, leaving only a charred stick of wood.Chemical
A copper wire is cut into five smaller pieces.Physical
An ice cube melts. Physical
Gasoline burns in a car engine. Chemical
Let’s review physical and chemical changes!
A spoonful of sugar is dissolved in a cup of coffeePhysical
A silver knife and fork tarnish when they are exposed to air for several weeks.Chemical
Leaves of a maple tree turn bright red as winter approaches. Chemical
Water is heated and changed to steam. Physical
Food is digested in your stomach.Chemical
• A chemical equation expresses what happens in a chemical reaction.
• Sometimes a reaction produces a gas, which may be difficult to measure. However, if measured, the mass of the reactants will be equal to the mass of the products.
Name the reactants in the following equations2Mg + O2 2MgOC + O2 CO2
2H2 + O2 2H2OName the products in the following equations2CO + O2 2CO2
N2H4 + O2 N2 + 2H2OC6H12O6 + 6O2 6CO2 + 6H2O
Connection:12 oz of dough, 4 oz mushrooms, 12 slices pepperoni, 8 oz cheese and 5 oz tomato sauce are used to make a pizza. Write a recipe in words for putting together a pizza.
How would you write the recipe as an equation?
Exit:Write the equation for hydrogen and oxygen to water and label it Label: reactants, products, coefficients, subscripts, Chemical equation, elements, and compounds.
Practice: Notes: Paste Here
Identify the following molecule. Write the chemical formula and how many atoms of each element are in it.
IV. CONNECTIONS12 oz of dough, 4 oz mushrooms, 12 slices pepperoni, 8 oz cheese and 5 oz tomato sauce are used to make a pizza. Write a recipe in words for putting together a pizza.
How would you write the recipe as an equation?
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9/26/1162 Writing Formula Practice
10/14/2014
61 Writing Formulas Practice
10/14/2014
..
Starter: ApplicationName the reactants in the following equations2Mg + O2 2MgOC + O2 CO2
2H2 + O2 2H2O
Name the products in the following equations2CO + O2 2CO2
N2H4 + O2 N2 + 2H2OC6H12O6 + 6O2 6CO2 + 6H2O
Connection:12 oz of dough, 4 oz mushrooms, 12 slices pepperoni, 8 oz cheese and 5 oz tomato sauce are used to make a pizza. Write a recipe in words for putting together a pizza. How would you write the recipe as an equation?
Exit:Write the equation for hydrogen and oxygen to water and label it Label: reactants, products, coefficients, subscripts, Chemical equation, elements, and compounds.
Practice: Notes: Paste Here
Finish Chemical Formulas from yesterday (15 mins)
Identify the following molecule. Write the chemical formula and how many atoms of each element are in it.
• Write the equation for hydrogen and oxygen to water and label it Label: reactants, products, coefficients, subscripts, Chemical equation, elements, and compounds.