5 Written questions
5 Matching questions
- volume percent (solution)
- Pauli exclusion principle
- parts per million
- law of definite composition
- a The volume of solute in 100 mL of solution.
- b An atomic orbital can hold a maximum of two electrons which must have opposite spins.
- c An agreed upon system of measurements by scientists.
- d A measurement of the concentration of dilute solutions now commonly used by chemists in place of mass percent.
- e A compound always contains two or more elements in a definite proportion by mass.
5 Multiple choice questions
- The area of chemistry that deals with the quantitative relationships among reactants and products in a chemical reaction.
- A tiny packet of energy that streams with others of its kind to produce a beam of light.
- Thomson asserted that atoms are not indivisible but are composed of smaller parts; they contain both positively and negatively charged particles- protons as well as electrons.
- A homogeneous part of a system separated from the other parts by a physical boundary.
- Existing within the atom, these energy levels contain orbitals within which electrons are found.
5 True/False questions
percent yield → A gas that behaves exactly according to theory.
torr → An explanation of the general principles of certain phenomena with considerable evidence to support it; a well established hypothesis.
ionization energy → Stored energy, or the energy of an object due to its relative position.
solubility → The ability of a solute to dissolve in a solvent.
periodic table → An arrangement of the elements according to their atomic numbers. The table consists of horizontal rows, or periods, and vertical columns, or families, of elements. Each period ends with a noble gas.