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AC-HPAT CHEMISTRY EXAM (LATEST
UPDATES STUDY BUNDLE WITH COMPLETE SOLUTIONS)
QUESTIONS AND VERIFIED ANSWERS | 100%
CORRECT | GRADE A - ALGONQUIN
double-displacement reaction .....ANSWER.....is a reaction in
which the positive and negative ions of two ionic compounds
exchange places to form two new compounds.
Precipitate .....ANSWER.....is an insoluble solid that emerges from
a liquid solution. The emergence of the insoluble solid from
solution is called precipitation. Often the precipitate emerges as
a suspension. (Precipitates can form when two soluble salts react
in solution to form one or more insoluble products)
Energy Levels .....ANSWER.....(also called electron shells) are
fixed distances from the nucleus of an atom where electrons may
be found. As you go farther from the nucleus, electrons at higher
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energy levels have more energy. Electrons in the outermost
energy level of an atom are called valence electrons
Marquis Test .....ANSWER.....is commonly used for Ecstasy testing
as MDMA turns the precipitate purple black. Cobalt thiocyanate
is used to test for cocaine. The Cobalt is mixed with the
questionable substance, then drowned in hydrochloric acid,
doused in chloroform, and shaken.
What is the relation between an atomic number and a mass
number? .....ANSWER.....Atomic number is actually the number of
protons in an atom while mass number is the number of nucleons i.
e, number of protons plus the number of neutrons.
Isotopes .....ANSWER.....are members of a family of an element
that all have the same number of protons but different numbers
of neutrons.
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Chemical Synthesis .....ANSWER.....the construction of complex
chemical compounds from simpler ones. It is the process by which
many substances important to daily life are obtained
Decomposition .....ANSWER.....is a type of chemical reaction in
which a single compound breaks down into two or more elements
or new compounds. These reactions often involve an energy
source such as heat, light, or electricity that breaks apart the
bonds of compounds
single-displacement reaction .....ANSWER.....is a type of chemical
reaction where an element reacts with a compound and takes the
place of another element in that compound
Flame test .....ANSWER.....analytical procedure used in chemistry
to detect the presence of certain elements, primarily metal ions,
based on each element's characteristic emission spectrum. The
color of flames in general also depends on temperature
AC-HPAT CHEMISTRY EXAM (LATEST
UPDATES STUDY BUNDLE WITH COMPLETE SOLUTIONS)
QUESTIONS AND VERIFIED ANSWERS | 100%
CORRECT | GRADE A - ALGONQUIN
double-displacement reaction .....ANSWER.....is a reaction in
which the positive and negative ions of two ionic compounds
exchange places to form two new compounds.
Precipitate .....ANSWER.....is an insoluble solid that emerges from
a liquid solution. The emergence of the insoluble solid from
solution is called precipitation. Often the precipitate emerges as
a suspension. (Precipitates can form when two soluble salts react
in solution to form one or more insoluble products)
Energy Levels .....ANSWER.....(also called electron shells) are
fixed distances from the nucleus of an atom where electrons may
be found. As you go farther from the nucleus, electrons at higher
,Page 2 of 19
energy levels have more energy. Electrons in the outermost
energy level of an atom are called valence electrons
Marquis Test .....ANSWER.....is commonly used for Ecstasy testing
as MDMA turns the precipitate purple black. Cobalt thiocyanate
is used to test for cocaine. The Cobalt is mixed with the
questionable substance, then drowned in hydrochloric acid,
doused in chloroform, and shaken.
What is the relation between an atomic number and a mass
number? .....ANSWER.....Atomic number is actually the number of
protons in an atom while mass number is the number of nucleons i.
e, number of protons plus the number of neutrons.
Isotopes .....ANSWER.....are members of a family of an element
that all have the same number of protons but different numbers
of neutrons.
, Page 3 of 19
Chemical Synthesis .....ANSWER.....the construction of complex
chemical compounds from simpler ones. It is the process by which
many substances important to daily life are obtained
Decomposition .....ANSWER.....is a type of chemical reaction in
which a single compound breaks down into two or more elements
or new compounds. These reactions often involve an energy
source such as heat, light, or electricity that breaks apart the
bonds of compounds
single-displacement reaction .....ANSWER.....is a type of chemical
reaction where an element reacts with a compound and takes the
place of another element in that compound
Flame test .....ANSWER.....analytical procedure used in chemistry
to detect the presence of certain elements, primarily metal ions,
based on each element's characteristic emission spectrum. The
color of flames in general also depends on temperature
