Vocabulary Review


Vocabulary lists for each section of this Classroom Chemistry unit:


Vocabulary
soluble: able to dissolve in a certain solvent (usually water)
insoluble: unable to dissolve in a certain solvent (usually water)
crystal: a solid form of a substance with its components arranged in orderly manner
gas: a state of matter with no definite volume and no fixed shape
heterogeneous mixture: a mixture of two or more substances but with its components still seen
homogenous mixture: a mixture of two or more substances but with its components appearing to be one substance
liquid: a state of matter with a definite volume but no fixed shape
mixture: a substance consisting of two or more substances combined
buoyancy: the force of a fluid pushing up on an object that is less dense than the fluid is
solid: a state of matter with a definite volume and a definite shape
solution: one or more substance dissolved in another substance forming a homogenous mixture
solute: the substance being dissolved
solvent: the substance that causes the solute to dissolve
distillation: the separation of a mixture due to various boiling points
evaporation: the change of state from liquid to gas
surface tension: the film produced by the intermolecular forces between water particles
dissolve: the complete separation and intermingling of solute particles
crystallization: the formation of a regular, three-dimensional structure
filtration: the separation of a mixture based on differing sizes
mechanical separation: the manual separation of a mixture (by hand)
pure substance: a substance in which all particles are identical
solubility: the ability of a solute to dissolve in a certain solvent
condensation: the change in state from a gas to a liquid
boiling point: the temperature at which a substance changes from a liquid to a gas
1. What are the properties of pure substances and mixtures?
Vocabulary
acid: a substance that tastes sour, reacts with bases, reacts with metals, and conducts electricity
base: a substance that tastes bitter, reacts with acids, feels slippery, and conducts electricity
carbon dioxide: a colourless gas; can be produced when an acid reacts with baking soda
chemical reaction/change: a reaction that results in the change of the original substances
indicator: a chemical substance that changes colour when exposed to an acid or a base
irreversible: impossible to be reversed (cannot be changed to its original state or conditions)
reversible: capable of being reversed (can be changed to its original state and conditions)
precipitate: a solid formed by the chemical reaction of two liquids
physical change: a change in the form or appearance of a substance
neutral: a substance that is neither acidic nor basic
2. What are chemical reactions?