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06.04 Lab Reaction Rates and Temperature

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Ferishia Cooper

on 24 March 2013

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Transcript of 06.04 Lab Reaction Rates and Temperature

Reactions Rates and Temperature Laboratory Materials :
4 antacid tablets
2 clear cups labeled Hot and Cold
Timing Device Hypothesis :
The temperature of the water will affect the
reaction rates since the molecules tend to move
faster once kinetic energy is brought to it. Procedure :
1. Get a timing device
2. Put cold water in one cup and put hot
water in the other.
3. Start the timer and drop one antacid tablet
into one cup at the same time.
4. Record the time that the antacid tablets
dissolved in each cup.
5. Repeat again. Data Table Length of time the Hot
Water Fizzed Test 1 Test 2 Length of time the Cold
Water Fizzed 35 seconds 1 minute and 7 seconds 43 seconds 1 minute and 9 seconds Conclusion:
-What evidence indicates that a chemical reaction took place?
The evidence that indicates that a chemical reaction took place is since the antacid tablets went into a cup with different temperatures of water and dissolved.

-Was your hypothesis correct? Support your answer with data from your experiment.
Yes, my hypothesis was correct since due to the fact of kinetic energy upon an antacid makes it dissolve faster.

-Predict what would happen if we conducted the same experiment with room temperature water.
If you were you conduct the same experiment with room temperature it would dissolve the same way it did in cold water, since it's not hot.
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