Chemical Reaction Lab Report

From this lab we can learn to observe physical properties of varying substances as well as to use chemical reactions to observe chemical observe the chemical properties of varying substances. In experiment #1, we were able to detect physical properties of the aluminum and copper sulfate simply by looking at the substances. We then combined the two substances to see if they would create a chemical reaction and test the chemical properties. After being combined, bubbles and gas were created and the color of the substance changed, validating that the combination of these substances created a chemical change. This also explains that both substances have chemical properties that caused them to react to one another. In experiment #2, similarly
to #1, we could observe the physical properties of the substances such as color and state of matter. Once again we combined the substances to observe if the substances would react to each other and create a chemical change. Once the calcium metal and hydrochloric acid had been exposed to each other, bubbles and gas were again created, and the color of the calcium metal changed. This indicates that the chemical properties of the substances reacted together to create a chemical change. We began the final experiment by observing and documenting the physical properties of the substances and beginning the experiment. However, after the salt had been dissolved in the water there was no indication of a chemical reaction. No gas had been released, the temperature had not changed, no new precipitate was formed, and the color of the substances had not changed. From this, we can learn that the chemical properties of the substances did not react to one another and no chemical change occurred. These experiments help to demonstrate the differences between chemical and physical properties, as well as how they can be identified.