Tuesday, September 27, 2011

Chemistry In A Bag

Observations Before Lab:
Water- Clear, Liquid
Calcium Chloride- Round balls, White
Sodium Bicarbonate- White Powder
Phenol Red- Red, Liquid

Test With All Of Them Together:
Turned Yellow, Bubbly, Produced Gas That Inflated Plastic Bag, Hot, Then Turned Cold, Smells Like Rubbing Alcohol Afterward.

Test With Individuals:
Calcium Chloride With Water- Hot
Sodium Bicarbonate With Water- Cold
Calcium Chloride With Phenol Red- Warm
Sodium Bicarbonate With Phenol Red- Pink, Cold
Phenol Red With Water- Cold

Post- Lab Questions
1.Calcium Chloride Made It Hot, Phenol Red Made It Cold
2.No, It Turned Hot And Cold In The Overall Reaction. We Had Thoses Same Results In The Controlled Experiment.
3.No, Red Turned To Yellow In The Overall Reaction. The Only Color Change In The Controlled Experiment Was Red To Pink.
4.Yes, They Are Mixed Together
5.Yes, Water Doesn't Seem To Effect The Reactions Of The Experiment.
6.The Gas That Is Created And The New Color And The New Temperature Shows That It Is A New Substance.

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