5 Written questions
5 Matching questions
- Graham's law of effusion
- molar volume (of a gas)
- mass percent solution
- a A tiny packet of energy that streams with others of its kind to produce a beam of light.
- b 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.
- c The grams of solute in 100 g of a solution.
- d 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.
- e The volume of 1 mole of a gas at STP equals 22.4 L/mol.
5 Multiple choice questions
- Anything that has mass and occupies space.
- The characteristics of substances that give them unique identities.
- SI unit of volume.
- An arrangement of atoms in the VSEPR model where the three pairs of electrons are placed 120 degrees apart on a flat plane.
5 True/False questions
ionization energy → Stored energy, or the energy of an object due to its relative position.
law of multiple proportions → Atoms of two or more elements may combine in different ratios to produce more than one compound.
heat → A form of energy associated with the motion of small particles of matter.
principal energy levels of electrons → Existing within the atom, these energy levels contain orbitals within which electrons are found.
Gay-Lussac's law → The resistance in a liquid to increase its surface area.