Iron is a :

A. substance
B. heterogenous mixture
C. homogenous mixture

Which of the following electromagnetic waves can create ions?

What is the empirical formula for c4h8o2

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.