4-5-13
Conservation of Mass Lab
Chemical Reaction
What is a chemical reaction? A chemical reaction is a reaction where two or more elements or compounds mix together and form a new substance.
What are the signs? Change in color and temperature. The formation of gases or precipitate. There is also energy produced.
What are the signs? Change in color and temperature. The formation of gases or precipitate. There is also energy produced.
Vinegar and Baking Soda
C2H4O2 + NaHCO3. This is baking soda and vinegar. These are also known as reactants. When they combine in a chemical reaction they form a substance known as the product. The product in this case is H2O + CO2 + NaC2H3O2.
Lab
Mass of both is 231.2 g. The new mass is 231.1 g. There is almost no change.
Analysis Questions
- Several new substances were formed along with bubbles and other indicators. The ballon also blew up. The smell and temperature also changed. It didn't smell like vinegar and it became cold.
- The final mass was very close to the initial. It probably lost some gas with the insecure seal.
- There is a liquid, solid and gas formed.