Can you do the Mentos and coke without tube?

Yes, you can perform the Mentos and Coke experiment without a tube. Here are the steps:

Materials:

1. A bottle of Coca-Cola or any other carbonated beverage.

2. Mentos mints.

Procedure:

1. Ensure the soda is at room temperature for the best results.

2. Open the soda bottle and remove the cap.

3. Place several Mentos mints into the bottle, making sure they are evenly distributed.

4. Quickly move away from the bottle as the reaction is going to start immediately.

5. The Mentos will initiate the release of carbon dioxide, causing a rapid and intense foaming reaction.

6. Foam will erupt from the bottle and create a fountain-like effect, shooting into the air.

Tips and Additional Information:

- The reaction occurs due to the gelatin and gum arabic in the Mentos mints. They create an ideal nucleation surface, which triggers rapid carbon dioxide release.

- For a more dramatic effect, you can add multiple Mentos mints or use a larger bottle of soda.

- Be sure to keep the experiment in a safe outdoor location or use a large sink indoors, as the foam can create a mess.

- Avoid getting the foam on your skin or eyes, as it may cause irritation.

- This demonstration highlights nucleation, a fundamental concept in chemistry that involves the formation of bubbles and crystals.