General Chemistry Placement Test Study Guide 108 Questions And Answers
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Terms in this set
108
molecule
two nonmetal atoms combined form a covalent compound called a
diatomic molecules
H2,O2,F2
Matter
Anything that has mass and takes up space
Element
A substance that cannot be broken down into simpler substances
Compound
A pure substance made of two or more elements CHEMICALLY combined.
Compound
Can be decomposed by chemically
Mixture
A PHYSICAL blend of two or more components
(aq)
aqueous mixture, a substance is dissolved in water
homogeneous mixture
A mixture that is so evenly mixed that you can't see all of the different parts. Ex. Air, kool-aid
heterogeneous mixture
A mixture in which different materials can be seen easily.
Ex. soil, chocolate chip cookies
Ex. soil, chocolate chip cookies