• we had to do a lab that involved taking 4 different chemicals, calcium choride, phenol red, baking soda and water. we had to mix all of those chemicals in a bag and obsever what was happening. we had to write down our observations. After we observed all four chemicals mixed together we had to experiment and find out where all of the observations were coming from. so we mixed just two of the chemicals together and obseved what happened such as the phenol red and the calcuim chloride. Then we went on experimenting with all four chemical mixing only two at a time.


• We used one spoon full of the calcium chloride, and the baking soda then we used one pipet full of the phenol red and the water.


• With all four of the chemicals mixed together our observations were that the color changed to a bright yellow color, it fizzed, it was producing gas and heat and had a slight odor. With only the phenol red and calcium chloride it got hot, and smelled like rubbing alcohol. With water and calcium chloride it got hot and smelled like chorine. With water and baking soda it got cold and turned into a thick paste. With phenol red and baking soda it was a cold thick paste with no smell. With the two solides and the phenol red it turned into a yellow paste and formed a gas.

1. the calcium chloride


2. with the phenol red and the baking soda it got cold right away but with all four mixed it got hot first then it got cold.


3. it turned yellow and the calcium chloride, baking soda, and phenol red mixed caused the color change


4. yes becasue substances have to change


5. we did all of the controlled experiments we could to evaluate everything that happened everything happened with the absence of water except for the fizzing


6. the plastic bag filled with air which shows it was producing a gas, and the two solids and phenol red mixed together caused that.


7. you could mix just calcium chloride and water and observe what happens.


8. yes because heat it formed from a chemical reaction.

• some of the observations were with the four chemicals mixed together it changed color and heated up and it was producing a gas because the bag filled with air and looked like it was about to blow up.