mp4pd5Group+6

Brooke and Herbie with our elements. Ryan and Herbie with the elements Our lab equipment. Brooke typing our predictions on our wiki. Herb writing our summary. Ryan typing our conclusion. Conclusion: A gas formed because we mixed Calcium Chloride with Sodium Bicarbonate. When we mix them two a gas forms and different reactions happen. Calcium Carbonate is not soluble in water. Precipitate is when a gas forms or a solution come out of it.

Predictions:
 * Water + Calium Chloride- We predicted that there is going ti be a color change
 * =====BB + Calcium Chloride (H20)-We predict that the substance will change and the color will change to a light blue=====
 * =====NaHCO3 + Water- We predict that the sodium biocarbonate will sink to the bottom of the water=====
 * =====CaCl2 + NaHCO3- We predicted that a preicipate or a solid will form at the bottom=====
 * =====CaCl2 + NaHCO (water)- we predict that the sibstance will make a color change=====
 * =====NaHCO3 + BB- We think that their will be a color change and it will be a light blue=====
 * =====NaHCO3 + CaCl2 + BB (H2O)- We predict that the substance will create a color change to a brighter color yellow or white=====

Background information: Water; -Colorless -Tasteless -Transparent -Odorless

Calcium Chloride; -White -Crystalline salt

Sodium Bicabonate; -White solid -Crystalline -Salty

Bromothymol Blue; -A dye used as an acid-base indicator -Will turn yellow in an acid

Observation - water and calcium chlorid settled, white, and a gas formed. - NaHCO3 and B.B. the sodium bicarbonate turned into a solid -NaHCO3 and B.B. and CaCl2 and H2O fizzed, white, gas formed. -CaCl2 and H2O the water turned white and dissolved, exothermic. -B.B. and CaCl2 and H2O bright blue on bottom and darker on top. -CaCl2 and NaHCO3 and H2O the color was cloudy white, bubbles, fizzy, and a as formed, fizzy sound, particapte formed (solid)

Summary: We found that all of the chemcial reactions changed in a different way. To start, we found the mass of the flim canister, the added 0.5g to the mass. Next, we added our chemical with a lap scoop, so we did not how the touch the chemical. The we found the mass of a piece of paper and then added 0.5g to the mass. Next, we added the next chemcial to the paper with the lab scoop to find the mass. Our liquid we used was 15mL. We saw precipiates, gases,endothermic, and fizzy sounds in the chemical reactions. In the end, we saw that each chemical changed and things happend to make a new substance.

Experimental design Question: With what chemicals does a reaction happen? Hypothesis: I think that all of the chemicals will make some kind of reaction with each other whether it is water or the other chemicals. Independent Variable: Calcium Chloride Dependent Variable: Water Constants: The chemicals and amount of water that we put in the graduated cylinder. Procedure: First we balance the triple beam balance. Next we put both of the chemicals in the beakers. Then we mixed both of the chemicals and saw what happened. When we were done we cleaned up what was messy.