Elephant toothpaste potassium iodide equation

We have learned this week about chemical reactions, mostly on paper. Let's try to see some of those reactions happening.

For this discussion board we will share videos of experiments/demonstrations in which chemical reactions are performed and we will explain the reaction happening.

1- Look online for a video of a simple chemical experiment/demonstration that shows how the reaction is performed.

Here are some links you could use for your search.

· 20 Awesome Science Experiments You Can Do Right Now At Home

· Easy Chemistry Experiments You Can Do at Home

· YouTube - Chemical Experiments At Home

· Top 10 Mad Science-Worthy Chemistry Experiments

2- Watch the video and identify the main chemical reaction in the demonstration: Reactants, catalysts, material, procedure and products.

3- Share on the discussion board:

a. Embed the video in your main post.

b. Add the main reaction ( balanced) performed in the experiment and the materials.

c. Add a summary of the experiment, explaining the chemical details or the reaction.

d. Comment on two other students posts.

BELOW IS AN EXAMPLE OF A MAIN POST:

Elephant's Toothpaste Geyser With Science Bob on Jimmy Kimmel Live

a. Video Link: https://cdnapisec.kaltura.com/index.php/extwidget/preview/partner_id/1700302/uiconf_id/32654372/entry_id/0_t47kkq75/embed/dynamic

b. The overall equation for this reaction is:

2 H2O2(aq) → 2 H2O(l) + O2(g)

The decomposition of the hydrogen peroxide into water and oxygen is catalyzed by the iodide ion.

Materials:

· 30% hydrogen peroxide (H2O2)

· Saturated potassium iodide (KI)

· Liquid dishwashing detergent

· Food coloring

· Graduated cylinder/Tall Container

c. Summary

When hydrogen peroxide (H2O2) decomposes, it breaks down to form water (H2O) and oxygen (O2). Sodium iodide acts as a catalyst speeding up the decomposition of hydrogen peroxide. The soap bubbles that erupt from the container are filled with oxygen. As the reaction takes place, steam rises from the erupting foam. This shows that the reaction is exothermic, meaning that it gives off heat.