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Tuesday, May 13, 2014

Wrap Up Questions

1.  What happened to the bag?
2.  What made the bag puff up like a pillow?
3.  Where did the gas come from?
4.  What did you find out by doing the reaction in a bag that you couldn't find out doing the reaction in a cup?
5.  How much gas formed as a result of the reaction?
6.  How does the volume of gas compare to the volume of substances you put into the bag?
7.  How did the reaction differ between the 2 bagged experiment?
8.  Which reaction produced more gas?
9.  What happened when we put all 3 reactants in the bag and added water?

Vocabulary
Reactant
Product
Reaction

Write a conclusion for the lab...
Explain the lab
Restate the problem and your hypothesis
Was your hypothesis support/not supported
What did you learn
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3 comments:

  1. ???????????????????????????May 13, 2014 at 5:20 PM

    Hi you have to announce that the frogs died. Tomorrow me and 2 friends will meet you in the science lab at lunch. You can guess who I am of us. Here's a hint, I'm going to comment on fizzy

    ReplyDelete
  2. AnonymousMay 13, 2014 at 9:03 PM

    1. It inflated from gas.
    2. The bag puffed up because of the gas from the chemical reaction.
    3. The gas came from the reaction and the chemicals.
    4. I found out how much gas was produced.
    5. 1 liter or the full capacity of the bag.
    6. When more substances are added the more gas forms.
    7. Solution 1 was murky and had very little bubbles in it. Solution 2 was clear and had a lot of bubble sin it.
    8. In my opinion solution 1.
    9. The bag inflates so much that it popped.
    Vocabulary:
    Reactant: A substance that undergoes change in a reaction.
    Product: A substance that is manufactured.
    Reaction: A response to a situation or event.
    Conclusion:
    In this lab we tested what would happen if we mixed citric acid and baking soda and calcium chloride and baking soda. My hypothesis was that both bags were going to inflate and the water level would rise. Also, there would be fizzing. the results showed exactly what I said, accept solution 2 became clear and had bubbles in it. My hypothesis was mostly supported. I learned that small ziploc bag's capacity is 1 liter and that calcium chloride is a stronger acid than citric acid.
    Sourav

    ReplyDelete
  3. BrookeMay 13, 2014 at 9:19 PM

    1. the bag puffed up
    2. the air pressure inside the bag
    3.the gas came from the baking soda
    4.i found out that it will expand. I cant find this in a cup cause there is openings in a cup
    5.a lot of gas formed, I would say like 50 mg
    6. it compares as being more
    7.the first one was cold, the second warm
    8.Bag 1
    9. it puffed up but didn't pop

    ReplyDelete

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