Would you describe acetone in the gaseous state as a vapor or gas

When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.

How does science use models to gain a better understanding of concepts?

Complete the following radioactive decay problem. tan+on-? c+th