The elephant toothpaste demonstration was a great example of the use of potassium iodide as "catalyst". Why did Dr. Hartings use potassium iodide in this demonstration?
To slow down the reaction
To speed up the reaction
To preserve the oxygen in the soap bubbles
To give color to the foam
Ammonia is one of the most produced chemical compounds in the world today. Which of the following is the main real-world use for ammonia? *
2 points
To maintain the level of of nitrogen in the air (78%)
