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%)

to produce household cleaners

to produce nitric acid

to produce fertilizer for crops