Which of the following substances would be the softest?

cuo

sic

c25h52

zn

What is the polyatamic ion of thiosulfate

Scientist think that animals with remarkably similar embryo development probably shared a common ancestor

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.