BJU Physical World - Intro to Physical Science - Ch 5
Question
Answer
analysis
Breaking down materials into simpler substances for study.
atom
The fundamental particle of an element.
colloids
Heterogeneous mixtures in which particles of one substance are partially dispersed in another substance.
compound
A substance formed when two or more atoms of different elements chemically join together.
diatomic molecule
A molecule formed of two identical atoms bonded together.
element
Any substance that cannot be broken down into simpler substances by ordinary chemical means.
heterogeneous mixture
A mixture with different appearances in different parts.
homogeneous mixture
A mixture that appears the same throughout.
mixture
A physical combination of two or more pure substances.
molecular formula
It gives the number of atoms of each element in a molecule.
molecules
A particle made up of two or more atoms chemically joined together; a particle formed by a limited number of atoms bonded covalently; the basic unit of a covalent compound.
pure substances
A substance that is made up of only one kind of particle and is the same throughout.
solution
A homogeneous mixture of two or more substances.
suspension
A heterogeneous mixture consisting of small particles spread throughout a liquid or gaseous medium, from which they will eventually settle out.
symbols
A scientific abbreviation for the name of an element; consists of one or two letters with the first letter always capitalized.
Tyndall effect
When light passes through a liquid, the light will not be dispersed; an observation showing the presence of a true solution.
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