General Chemistry placement test UPDATED ACTUAL Exam Questions and CORRECT Answers
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Course
General Chemistry 1
Institution
General Chemistry 1
General Chemistry placement test
UPDATED ACTUAL Exam Questions and
CORRECT Answers
molecule - CORRECT ANSWER- two nonmetal atoms combined form a covalent
compound called a
diatomic molecules - CORRECT ANSWER- H2,O2,F2
Matter - CORRECT ANSWER- Anything that has mass and takes up space
General Chemistry placement test
UPDATED ACTUAL Exam Questions and
CORRECT Answers
molecule - CORRECT ANSWER✔✔- two nonmetal atoms combined form a covalent
compound called a
diatomic molecules - CORRECT ANSWER✔✔- H2,O2,F2
Matter - CORRECT ANSWER✔✔- Anything that has mass and takes up space
Element - CORRECT ANSWER✔✔- A substance that cannot be broken down into simpler
substances
Compound - CORRECT ANSWER✔✔- A pure substance made of two or more elements
CHEMICALLY combined.
Compound - CORRECT ANSWER✔✔- Can be decomposed by chemically
Mixture - CORRECT ANSWER✔✔- A PHYSICAL blend of two or more components
(aq) - CORRECT ANSWER✔✔- aqueous mixture, a substance is dissolved in water
homogeneous mixture - CORRECT ANSWER✔✔- A mixture that is so evenly mixed that
you can't see all of the different parts. Ex. Air, kool-aid
heterogeneous mixture - CORRECT ANSWER✔✔- A mixture in which different materials
can be seen easily.
Ex. soil, chocolate chip cookies
filtration - CORRECT ANSWER✔✔- process to separate a solid "precipitate" from a liquid
, sublimation - CORRECT ANSWER✔✔- phase change from (s) --> (g)
empirical formula - CORRECT ANSWER✔✔- A formula showing the lowest whole number
ratio of atoms in a compound. Can't be reduced.
solid - CORRECT ANSWER✔✔- A state of matter that has a definite shape and a definite
volume
liquid - CORRECT ANSWER✔✔- A form of matter that flows, has constant volume, and
takes the shape of its container
Bromine (Br) and Mercury (Hg) - CORRECT ANSWER✔✔- only two liquids on the
periodic table
gas - CORRECT ANSWER✔✔- A state of matter with no definite shape or volume
gas - CORRECT ANSWER✔✔- will uniformly and completely fill a container
gases - CORRECT ANSWER✔✔- physical property most all nonmetals and group 18
physical property - CORRECT ANSWER✔✔- A characteristic of a substance that does not
involve a chemical change. Ex. melting/boiling point, solubility, density, color, or hardness.
properties - CORRECT ANSWER✔✔- used to identify or recognize matter (objects).
chemical property - CORRECT ANSWER✔✔- describes how matter reacts when it changes
chemically into another substances. Ex. reactivity with acid, base or with air to rust,
flammability, decomposition.
physical/phase change - CORRECT ANSWER✔✔- (s)-->(l)-->(g), diluting, crush, cut. Still
same substance.
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