Chemistry in a bag

For this lab we mixed:

Calcium Chloride
Sodium Bicarbonate
Phenol Red
Water

Safety concerns:
Phenol red stains


When mixed in a bag, the chemicals became hot and gas was produced. After shaking it for a while the mixture became cold and stopped reacting. When opened the gasses escaped and there was an odor of paint. Next we mixed all possible combination to confirm what reacted with what to create the conditions observed.


1. Phenol red and Calcium Chloride.
2. Phenol red and Calcium Chloride created heat.
3. The overall color was orange. The phenol red mixed with Calcium Chloride caused this.
4. No, water and Sodium Bicarbonate caused gas to be produced without a temp. change.
5. All possible mixtures where tested.
6. The change in color, temp and odor suggest the creation of a new chemical substance.
7. Combine Calcium Chloride with water and see if anything changes.
8. In this lab it does. In general temp. changes are caused by the breaking and forming of chemical bonds, resulting in the creation of other chemicals.