CHEM 120 Exam | Questions And
Answers | Latest Exam 2026-2027
define matter -ANSWER anything that has mass and takes up space
what is not considered matter? -ANSWER light, heat, electricity
definite shape, definite volume -ANSWER solid
indefinite shape, definite volume -ANSWER liquid
indefinite shape, indefinite volume -ANSWER gas
pure substance -ANSWER one substance; definite and constant composition; can't be
separated into 2 kinds of matter by physical means; single kind of matter
heterogeneous mixture -ANSWER nonuniform in appearance; visibly different phases
homogeneous mixture -ANSWER visibly one distinct phase; uniform properties
examples of pure substances -ANSWER water, sugar, table salt
examples of heterogeneous mixtures -ANSWER trail mix, chocolate chip cookies, cereal
and mix
examples of homogeneous mixtures -ANSWER chocolate milk, orange juice, salt water
element v compound -ANSWER can't be broken down into simpler substances by
chemical or physical means -v- can be broken down into elements by chemical, but not
physical means
mixture v compound -ANSWER physical combinations of substances -v- chemical
combination of substances
most abundant elements in the universe as a whole plus in earth's crust -ANSWER
hydrogen and oxygen
two most abundant elements in the earth's crust -ANSWER oxygen and silicon
Ag -ANSWER silver
Al -ANSWER aluminum
Ar -ANSWER argon
, Au -ANSWER gold
B -ANSWER boron
Ba -ANSWER barium
Be -ANSWER beryllium
Br -ANSWER bromine
C -ANSWER carbon
Ca -ANSWER calcium
Cl -ANSWER chlorine
Cu -ANSWER copper
F -ANSWER fluorine
Fe -ANSWER iron
H -ANSWER hydrogen
He -ANSWER helium
Hg -ANSWER mercury
I -ANSWER iodine
K -ANSWER potassium
Pt -ANSWER platinum
U -ANSWER uranium
Li -ANSWER lithium
Mg -ANSWER magnesium
N -ANSWER nitrogen
S -ANSWER sulfur
Zn -ANSWER zinc
Answers | Latest Exam 2026-2027
define matter -ANSWER anything that has mass and takes up space
what is not considered matter? -ANSWER light, heat, electricity
definite shape, definite volume -ANSWER solid
indefinite shape, definite volume -ANSWER liquid
indefinite shape, indefinite volume -ANSWER gas
pure substance -ANSWER one substance; definite and constant composition; can't be
separated into 2 kinds of matter by physical means; single kind of matter
heterogeneous mixture -ANSWER nonuniform in appearance; visibly different phases
homogeneous mixture -ANSWER visibly one distinct phase; uniform properties
examples of pure substances -ANSWER water, sugar, table salt
examples of heterogeneous mixtures -ANSWER trail mix, chocolate chip cookies, cereal
and mix
examples of homogeneous mixtures -ANSWER chocolate milk, orange juice, salt water
element v compound -ANSWER can't be broken down into simpler substances by
chemical or physical means -v- can be broken down into elements by chemical, but not
physical means
mixture v compound -ANSWER physical combinations of substances -v- chemical
combination of substances
most abundant elements in the universe as a whole plus in earth's crust -ANSWER
hydrogen and oxygen
two most abundant elements in the earth's crust -ANSWER oxygen and silicon
Ag -ANSWER silver
Al -ANSWER aluminum
Ar -ANSWER argon
, Au -ANSWER gold
B -ANSWER boron
Ba -ANSWER barium
Be -ANSWER beryllium
Br -ANSWER bromine
C -ANSWER carbon
Ca -ANSWER calcium
Cl -ANSWER chlorine
Cu -ANSWER copper
F -ANSWER fluorine
Fe -ANSWER iron
H -ANSWER hydrogen
He -ANSWER helium
Hg -ANSWER mercury
I -ANSWER iodine
K -ANSWER potassium
Pt -ANSWER platinum
U -ANSWER uranium
Li -ANSWER lithium
Mg -ANSWER magnesium
N -ANSWER nitrogen
S -ANSWER sulfur
Zn -ANSWER zinc
