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7.3 BALANCING EVERYDAY EQUATIONS BY: DANIELLE RASH, JUSTIN SHAZAR AND ERIC REYES-MUNOZ

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WHAT IS AN EVERYDAY EQUATION? Everyday equations show qualitative and quantitative relationships between reactants and products. Everyday equations show qualitative and quantitative relationships between reactants and products. A qualitative relationship shows the type of reactants used in the equations. A qualitative relationship shows the type of reactants used in the equations. A quantitative relationship shows the number of each reactant used. A quantitative relationship shows the number of each reactant used. Lets put this into simpler terms. Lets put this into simpler terms.

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WRITING A BALANCED EQUATION Reactants on right, products on the left. Reactants on right, products on the left. Ex. Frame + wheel + handlebar + pedal Bicycle (Reactants) (Product) Ex. Frame + wheel + handlebar + pedal Bicycle (Reactants) (Product) Convert words to letters. Ex. F+W+H+P FWHP Convert words to letters. Ex. F+W+H+P FWHP If more than one of anything, put a coefficient in front of letter reactants, and subscripts after letter products. If more than one of anything, put a coefficient in front of letter reactants, and subscripts after letter products. Ex. F + 2W + H+ 2P FWHP Ex. F + 2W + H+ 2P FWHP Lets show pictures for you visual learners. Lets show pictures for you visual learners.

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BICYCLE EXAMPLE What parts do you need to build a bike? The components: 1 Bike Frame 2 Pedals 1 Handle Bar 2 Wheels

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PIZZA EXAMPLE What ingredients do you need to make a pizza? What ingredients do you need to make a pizza? The Components: The Components: 1 cup of cheese 1 cup of cheese 2 cups of sauce 2 cups of sauce 1 package of dough 1 package of dough 14 slices of pepperoni 14 slices of pepperoni C + 2S+ D + 14P C S D P 214

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CAR EXAMPLE What parts do you need to build a car? What parts do you need to build a car? The components: The components: 4 Wheels 4 Wheels 1 Engine 1 Engine 1 Car Frame 1 Car Frame ++ 4W + E + F W 4 EF

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WHAT IS THE CORRECT PRODUCT FOR THIS EQUATION? 17L + 4P + F + 2G + 3C + 2A A.P G A L F C B.F A G P C L C.L P F G C A D.F A P G C L

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C + 3F + 7G FG C IS THE EQUATION BALANCED? C + 3F + 7G FG C A.Yes B.No

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FACTS Balanced equations are always used when cooking. Ex. Cooking an omelet, Baking cookies Balanced equations are used when creating teams/groups. Ex. Restaurant Kitchen

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PQP HW Q: If a soccer team calls for a goalie, four defenders, three midfielders, and three forwards, what is the balanced equation needed?

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