5 Written questions
5 Matching questions
- Graham's law of effusion
- vapor-pressure curve
- a A graph generated by plotting the temperature of a liquid on the x-axis and its vapor pressure on the y-axis. Any point on the curve represents an equilibrium between the vapor and the liquid.
- b A solid that contains water molecules as part of its crystalline structure.
- c The rates of effusion of two gases at the same temperature and pressure are inversely proportional to the square roots of their densities or molar masses.
- d A unit of pressure (1 torr = 1 mm Hg).
- e Mater that has uniform properties throughout.
5 Multiple choice questions
- The ability of a solute to dissolve in a solvent.
- A chemical substance entering into a chemical reaction.
- In the VSEPR model, an arrangement where the pairs of electrons are arranged 180 degrees apart.
- A state of matter in which the particles move about freely while the substance retains a definite volume; thus, liquids flow and take the shape of their containers.
- Number that appears below the line and to the right of a symbol of an element.
5 True/False questions
STP (Standard Temperature and Pressure) → 0 degrees C (273 K) and 1 atm (760 torr).
proton → A subatomic particle found in the nucleus of the atom that caries a positive electrical charge and a mass of about 1 amu.
wavelength → Ionic compounds of cations and anions.
liter (L) → SI unit of volume.
weight → A measure of the earth's gravitational attraction for an object.