Using the drop-down menus, label the parts of the rock
cycle.
A
B
Dcementation
Cooling
Igneous Rock
Melting
D
Magma
Heat and
pressure
Melting
B
D
D
Heat and
pressure
С
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.