ONLY FOR GROUP 8

When you put water and oil, the water gets down and oil gets up.
When you put the colorant in the cup it mixes with the water. Then you put the aspirine, and it dissolves.
Finaly, you put a light and it makes a very cool effect.The product released in this reaction is the C02.The effervescent aspirin contains acetylsalicylic acid and bicarbonate. Once dissolved, the both substances react together releasing carbon dioxyde.

OK but can you explain which chemical reaction is involved in this experiment, producing such a cool effect ! What chemical substances does this aspirin contain ? What is the product released in this reaction ?  You have to answer these questions to explain entirely what's happened.

N.Hoang (French science teacher)

2nd revision (I corrected myself)

Spain 1

(Pais Vasco)

Material list

1. potassium iodide KI

2. distilled water

3. test tube

4. dishwasher soap

5. oxigened water H2O2

OBSERVATION

They begin their video with potassium iodide KI and they put this on a balance, after that she mesured, they put in water distilled and mix it and they see chemical reaction because the mixture on cause a wonderful outbreak.

CHEMICAL REACTIon

This result is due to the fact that the chemical reaction is :

2H2O2 -> 2H2O + O2

this reaction is catalysed by potassium iodide KI.

Thanks to this reaction, the soap can be mixed with water and the oxygen is released, forming a big foam of soap.

That's what we see in the video.

You did not explain the experiment. Analyse it and give scientific explanation. Correct your English mistakes

N.Hoang

OK 2nd revision

by Spain 2 Group9

The fluid that we have obtained is a non-Newtonian fluid that is characterized by the degree of viscosity depending on the force acting on it or how fast an object moves to bring him. If a force is acting its behaviour is like a solid.

OK

P. Sirabella