Summary Student Exploration: Chemical Changes
Student Exploration: Chemical Changes Vocabulary: acid, base, catalyst, chemical change, coefficient, conservation of matter, decomposition, dissolve, double replacement, endothermic, exothermic, indicator, ion, physicalchange, 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 resultsare shown at left. Do you think any new substances are being created in this mixture? If so, how do you know? Yes, because, as shown in the image, there are bubbles,therefore gas is being released, which are characteristics of a chemical change. 2. Suppose this was done on top of a balance. Do you think themass would change as the reaction proceeded? yes 3. What do you think would happen to the mass if the reaction took place inside a sealed plastic bag? Then, the mass would not change, because the gases being released in the reaction are being collected
Información del documento
- Año escolar
- 5
- Subido en
- 7 de octubre de 2021
- Número de páginas
- 13
- Escrito en
- 2021/2022
- Tipo
- Resumen
