CHECIMICAL CHANGES GIZMOS FOR SCIENCE 789 -ALL ANSWERS CORRECT-GRADED A

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Name: Mahika Tyagi Date: 02/26/21 [You will copy and paste this into your Onenote lab notebook after completing the lab and worksheet] Student Exploration: Chemical Changes Vocabulary: acid, base,... catalyst, chemical change, coefficient, conservation of matter, decomposition, dissolve, double replacement, endothermic, exothermic, indicator, ion, physical change, product, reactant, single replacement, subscript, synthesis Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. A student mixes baking soda and vinegar in a glass. The results are shown at left. Do you think any new substances are being created in this mixture? If so, how do you know? Yes, new substances are being created in this mixture. One signifier of this reaction is the newfound bubbles emerging from this concoction. 2. Suppose this was done on top of a balance. Do you think the mass would change as the reaction proceeded? Yes, I believe that the mass would change during this reaction. 3. What do you think would happen to the mass if the reaction took place inside a sealed plastic bag? The mass of the mixture would somewhat remain the same due to the law of conservation of matter. Gi [Show More]

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