Millbrook High School Balancing Chemical Equations Gizmo-verified by experts-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? [Show More]

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