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Gizmo Balancing Chemical Equations

Explore how to balance chemical equations using the Gizmo simulation. Learn key concepts like reactants, products, subscripts, and coefficients through real-life analogies and guided questions to understand synthesis and decomposition reactions.

Daniel Miller
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m l GizmosName:Date:Student Exploration: Balancing Chemical EquationsVocabulary: coefficient, combustion, compound, decomposition, double replacementelement,molecule, product, reactant, single replacement, subscript, synthesisPrior Knowledge Questions (Do these BEFORE using the Gizmo.)The scouts are making s'mores out of toasted marshmallows, chocolate, and graham crackers.1.What is wrong with the image below?.____2.Assuming a s'more requires two graham crackers, one marshmallow, and one piece ofchocolate, how many s'mores could you make with the ingredients shown?Gizmo Warm-uptn a chemical reaction, reactants interact to formproductsThis process is summarized by a chemical equation. In theBalancing Chemical EquationsGizmo, look at the floatingmolecules below the initial reaction: Hz +HiO.1.How many atoms are in a hydrogen molecule {H:j?2.How many atoms are in an oxygen molecule (O-j?3.How many hydrogen and oxygen atoms are in a water molecule (HzO)?4In general, what does a subscript (such as the "2" in H j tell you about the molecule?____i _______________________________________________________________________5. A chemical equation isbalancedif the number of each type of atom on the left side is equalto the number of each type on the right side. Is this reaction balanced?ZEHEHli.-W.-ifld cr -cJ.’.nj >■,r/tAbitir J’ 2018 F*olortLsam - q
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Chemistry

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