Chemistry > GIZMOS > Balancing Chemical Equations Gizmo-converted.pdf. guaranteed mastery. graded A+ (All)

Balancing Chemical Equations Gizmo-converted.pdf. guaranteed mastery. graded A+

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Student Exploration: Balancing Chemical Equations Directions: Follow the instructions to go through the simulation. Respond to the questions and prompts in the orange boxes. Vocabulary: coefficient ... , combustion, compound, decomposition, double replacement, element, molecule, product, reactant, single replacement, subscript, synthesis Prior 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? There are not ingredients shown to make the amount of smores shown 2. Assuming a s’more requires two graham crackers, one marshmallow, and one piece of chocolate, how many s’mores could you make with the ingredients shown? 2 Gizmo Warm-up In a chemical reaction, reactants interact to form products. This process is summarized by a chemical equation. In the Balancing Chemical Equations Gizmo, look at the floating molecules below the initial reaction: H2 + O2 ? H2O. 1. How many atoms are in a hydrogen molecule (H2)? 2 2. How many atoms are in an oxygen molecule (O2)? 2 3. How many hydrogen and oxygen atoms are in a water molecule (H2O)? 3 4. In general, what does a subscript (such as the “2” in H2) tell you about the molecule? How many molec ules there are 5. A chemical equation is balanced if the number of each type of atom on the left side is equal to the number of each type on the right side. Is this reaction balanced? This study source was downloaded by 100000773243632 from CourseHero.com on 03-29-2022 05:26:15 GMT -05:00 https://www.coursehero.com/file/68199088/-Balancing-Chemical-Equations-Gizmo-convertedpdf/ Reproduction for educational use only. Public sharing or posting prohibited. © 2020 ExploreLearning™ All rights reserved No Activity A: Balancing equations Get the Gizmo ready: ● Check that the Synthesis reaction is selected and that all coefficients are set to one. (The coefficients are the numbers in the boxes.) Introduction: The equation H2 + O2 ? H2O is unbalanced because there are two oxygen atoms on the reactants side of the equation, and only one on the products side of the equation. To balance the equation, you cannot change the structure of any of the molecules, but you can change the number of molecules that are [Show More]

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