What is nuclear fusion and what are the benefits of using it as an energy source

Define dew point. i am writing this part to be able to ask the question

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

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.