Amazing chemical reaction ?

One amazing chemical reaction is the reaction between sodium and water. When a small piece of sodium is dropped into water, it reacts violently, producing a large amount of heat and hydrogen gas. The reaction is so exothermic that the hydrogen gas ignites, creating a bright yellow flame. This reaction is not only visually stunning, but it also demonstrates the reactivity of alkali metals with water.

Elephant's Toothpaste

Materials:

- 250 ml 3% hydrogen peroxide solution (available at most drugstores)
- 1 tablespoon dish soap
- 2 tablespoons food coloring (optional)
- 1 packet of active dry yeast
- 800 ml warm water (approx. 105°F or 40°C)

Procedure:

1. In a large container (e.g., a 2-liter soda bottle), mix the hydrogen peroxide, dish soap, and food coloring (if desired).
2. In a separate container, dissolve the yeast in 1 cup of the warm water.
3. Pour the yeast solution into the hydrogen peroxide mixture.
4. Stand back and watch the amazing eruption!

Chemical Reaction:

Hydrogen peroxide is a strong oxidizing agent. When it comes into contact with the enzyme catalase, which is present in yeast, it rapidly decomposes into oxygen gas and water. The dish soap acts as a surfactant, creating bubbles that trap the oxygen gas, resulting in the dramatic foaming reaction.

Safety Precautions:

- Wear gloves and eye protection.
- Do not use more yeast than instructed or the reaction may become uncontrollable.
- Do not pour the reaction down the drain as it may cause blockages.
- Clean up any spills immediately.

Additional Notes:

- For a more intense reaction, use a higher concentration of hydrogen peroxide (e.g., 6%).
- Adding warm water helps to activate the yeast and speed up the reaction.
- You can create different colored reactions using different food colors.