What is the amplitude of the above wave?

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

Helium decays to form lithium. which equation correctly describes this decay?

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.