5 Written questions
5 Matching questions
- Gay-Lussac's law
- mass number
- law of definite composition
- a The ability of a solute to dissolve in a solvent.
- b At constant volume, the pressure of a fixed mass is directly proportional to the absolute temperature.
- c The sum of the protons and neutrons in the nucleus of a given isotope of an atom.
- d A tiny packet of energy that streams with others of its kind to produce a beam of light.
- e A compound always contains two or more elements in a definite proportion by mass.
5 Multiple choice questions
- Matter containing two or more substances, which can be present in variable amounts.
- Inherent physical properties of a substance that can be determined without altering its composition: color, taste, odor, state of matter, density, melting point, boiling point.
- Stored energy, or the energy of an object due to its relative position.
- 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.
- Matter that is homogeneous and has a definite, fixed composition; substances occur in two forms- elements and compounds.
5 True/False questions
sublimation → The substance that the solute is dissolved into.
transition elements → The energy required to remove an electron from an atom.
isotope → The substance that is dissolved in a solution.
volatile substance → A reactant the limits the amount of product formed by running out first in a chemical reaction.
molar solution → An ion composed of more than one atom.