Some students want to investigate the relationship between the pressure and volume of a gas. They take a sealed, thin-walled metal can full of air, place it in a vat of liquid nitrogen, and observe that the can collapses. Another student says that their procedure is a better demonstration of the effect of temperature on another property of the gas. Which of the following properties of the gas does the procedure best relate to temperature? a. Volume.
b. Pressure.
c. The amount of gas.
d. The universal gas constant.

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

Which is an example of a reversible physical change?

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.