The temperature of an unknown solution was observed over time as it was subject to cooling. The solution started as a liquid and ended as a solid. Based on the recorded data, which point on the y-axis represents the freezing temperature of the solution

How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.

Select the correct answer. wax is a nonpolar substance. in which type of substance is it most soluble?

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.