CHEMISTRY EXAM: 1ST
SEMESTER (CHAPTERS 1-3)
WITH 100% CORRECT ANSWERS
GRADED A+ 2026
chemistry - answer-study of composition, structure, and properties of matter, the
processes of matter, the process that matter undergoes, and the energy that
accompanies these processes
mass - answer-measure of amount of matter
matter - answer-anything that has mass and takes up space
atom - answer-smallest unit of an element that maintains the chemical identity of that
element
element - answer-pure substance that cannot be broken down into simpler, stable
substances and is made of one type of atom
extensive properties
ex) volume, amount of energy, mass - answer-depend on amount of matter present
intensive properties
ex) melting point, boiling point, density, conductivity - answer-do not depend on amount
of matter present
chemical reaction - answer-change that alters chemical properties
physical reaction - answer-change that does not change properties
, mixture - answer-blend or two or more kinds of substance that can be separated
pure substance - answer-fixed composition
homogeneous - answer-uniform in composition
heterogeneous - answer-not uniform throughout
vertical columns - answer-families or groups
horizontal rows - answer-periods
metal properties - answer-malleable, ductile, shiny, excellent conductors
nonmetal properties - answer-brittle, poor conductors, gases at room temp.
metalloid properties - answer-semi-conductors
What is most prevalent about noble gases? - answer-generally nonreactive
solid properties - answer-definite shape and volume
liquid properties - answer-indefinite shape and definite volume
gas properties - answer-indefinite shape and volume
Organic chemistry is the study of _________-containing compounds. - answer-carbon
SEMESTER (CHAPTERS 1-3)
WITH 100% CORRECT ANSWERS
GRADED A+ 2026
chemistry - answer-study of composition, structure, and properties of matter, the
processes of matter, the process that matter undergoes, and the energy that
accompanies these processes
mass - answer-measure of amount of matter
matter - answer-anything that has mass and takes up space
atom - answer-smallest unit of an element that maintains the chemical identity of that
element
element - answer-pure substance that cannot be broken down into simpler, stable
substances and is made of one type of atom
extensive properties
ex) volume, amount of energy, mass - answer-depend on amount of matter present
intensive properties
ex) melting point, boiling point, density, conductivity - answer-do not depend on amount
of matter present
chemical reaction - answer-change that alters chemical properties
physical reaction - answer-change that does not change properties
, mixture - answer-blend or two or more kinds of substance that can be separated
pure substance - answer-fixed composition
homogeneous - answer-uniform in composition
heterogeneous - answer-not uniform throughout
vertical columns - answer-families or groups
horizontal rows - answer-periods
metal properties - answer-malleable, ductile, shiny, excellent conductors
nonmetal properties - answer-brittle, poor conductors, gases at room temp.
metalloid properties - answer-semi-conductors
What is most prevalent about noble gases? - answer-generally nonreactive
solid properties - answer-definite shape and volume
liquid properties - answer-indefinite shape and definite volume
gas properties - answer-indefinite shape and volume
Organic chemistry is the study of _________-containing compounds. - answer-carbon
