Has anyone done this experiment before? I need help with the final results. What would happen when I place 2 mL of hydrogen peroxide into 5 test tube, add manganese dioxide powder to the first one, then add sand to the second one, liver to the third one, and ground liver to the fourth one, and billed liver to the fifth one. On a scale of 0-10 how much bubbling occurs in each? What happens at each step? I can’t seem to get mine to work. I need results only. Thanks for any help!

Thank you for using the Jiskha Homework Help Forum. This is definitely not my area but I have found some interesting sites online about catylists:

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3. ( a document to download) ww.bvsd.org/schools/fairview/Academics/Courses/Fraze.

4. (Broken Link Removed)

To determine whether this specific experiment has been conducted before, you would need to perform a literature search in scientific journals or databases. However, I can guide you through the process of conducting the experiment and explain the expected outcomes.

Experiment Procedure:
1. Label the 5 test tubes as follows: tube 1 (manganese dioxide), tube 2 (sand), tube 3 (liver), tube 4 (ground liver), and tube 5 (boiled liver).
2. Add 2 mL of hydrogen peroxide to each test tube.
3. Add a small amount of manganese dioxide powder to tube 1, sand to tube 2, liver to tube 3, ground liver to tube 4, and boiled liver to tube 5.
4. Observe the reactions in each test tube and rate the bubbling on a scale of 0-10.

Expected Outcomes:
1. Tube 1 (manganese dioxide): Manganese dioxide acts as a catalyst, promoting the decomposition of hydrogen peroxide. This reaction should result in significant bubbling, likely around 8-10 on the scale.
2. Tube 2 (sand): Sand does not have any catalytic properties, so it is not expected to cause a significant reaction. Bubbling in this tube should be minimal or nonexistent, rating around 0-2 on the scale.
3. Tube 3 (liver): Fresh liver contains the enzyme catalase, which accelerates the decomposition of hydrogen peroxide. Bubbling should occur, potentially at a moderate level of 4-7 on the scale.
4. Tube 4 (ground liver): Similar to tube 3, ground liver should also contain catalase, resulting in bubbling. The degree of bubbling might be similar to tube 3, around 4-7 on the scale.
5. Tube 5 (boiled liver): Boiling liver denatures enzymes, including catalase, rendering them ineffective. Therefore, little to no bubbling is expected, rating around 0-2 on the scale.

Troubleshooting Tips:
- Ensure that all materials used are clean and free from contaminants.
- Use the correct amount (2 mL) of hydrogen peroxide in each test tube.
- Double-check that you added the correct substances (manganese dioxide, sand, liver, ground liver, boiled liver) to the respective test tubes.
- Make sure the liver used is fresh and has not expired.
- Allow sufficient time for the reaction to occur. If no bubbling is observed, you can try gently swirling or shaking the test tubes to facilitate mixing.

Remember, obtaining accurate results may require troubleshooting and adjusting the experimental procedure to fit your specific conditions.