AC-HPAT CHEMISTRY EXAM
AC-HPAT CHEMISTRY EXAM WITH GUARANTEED ACCURATE ANSWERS |VERIFIED
Double-displacement reaction - ACCURATE ANSWERS✔✔ A double
displacement reaction, also known as a double replacement reaction or
metathesis, is a type of chemical reaction where two compounds react,
and the positive ions (cation) and the negative ions (anion) of the two
reactants switch places, forming two new compounds or products
Precipitate - ACCURATE ANSWERS✔✔ precipitate 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 - ACCURATE ANSWERS✔✔ Energy levels (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 energy levels have more energy. Electrons in the outermost
energy level of an atom are called valence electrons
Marquis Test - ACCURATE ANSWERS✔✔ The Marquis Test 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? -
ACCURATE ANSWERS✔✔ 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 - ACCURATE ANSWERS✔✔ Isotopes refer to the nuclides of
a certain element that have different numbers of neutrons, or in other
words, atomic nuclei that have the same number of protons but different
numbers of neutrons. A radioisotope is an isotope that is unstable and
therefore undergoes radioactive decay or will at some point.
Chemical Synthesis - ACCURATE ANSWERS✔✔ Chemical synthesis,
the construction of complex chemical compounds from simpler ones. It
is the process by which many substances important to daily life are
obtained. It is applied to all types of chemical compounds, but most
syntheses are of organic molecules.
, Decomposition - ACCURATE ANSWERS✔✔ A decomposition
reaction 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 - ACCURATE ANSWERS✔✔ A single-
displacement reaction, also known as a single-replacement reaction, is a
type of chemical reaction where an element reacts with a compound and
takes the place of another element in that compound. This type of
reaction is typically pictured like this: Here, A replaces B in the
compound BC
Flame test - ACCURATE ANSWERS✔✔ flame test is an 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;
see flame color.
Precipitation reaction - ACCURATE ANSWERS✔✔ A precipitation
reaction refers to the formation of an insoluble salt when two solutions
containing soluble salts are combined. The insoluble salt that falls out of
solution is known as the precipitate, hence the reaction's name.
Precipitation reactions can help determine the presence of various ions
in solution.
AC-HPAT CHEMISTRY EXAM WITH GUARANTEED ACCURATE ANSWERS |VERIFIED
Double-displacement reaction - ACCURATE ANSWERS✔✔ A double
displacement reaction, also known as a double replacement reaction or
metathesis, is a type of chemical reaction where two compounds react,
and the positive ions (cation) and the negative ions (anion) of the two
reactants switch places, forming two new compounds or products
Precipitate - ACCURATE ANSWERS✔✔ precipitate 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 - ACCURATE ANSWERS✔✔ Energy levels (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 energy levels have more energy. Electrons in the outermost
energy level of an atom are called valence electrons
Marquis Test - ACCURATE ANSWERS✔✔ The Marquis Test 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? -
ACCURATE ANSWERS✔✔ 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 - ACCURATE ANSWERS✔✔ Isotopes refer to the nuclides of
a certain element that have different numbers of neutrons, or in other
words, atomic nuclei that have the same number of protons but different
numbers of neutrons. A radioisotope is an isotope that is unstable and
therefore undergoes radioactive decay or will at some point.
Chemical Synthesis - ACCURATE ANSWERS✔✔ Chemical synthesis,
the construction of complex chemical compounds from simpler ones. It
is the process by which many substances important to daily life are
obtained. It is applied to all types of chemical compounds, but most
syntheses are of organic molecules.
, Decomposition - ACCURATE ANSWERS✔✔ A decomposition
reaction 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 - ACCURATE ANSWERS✔✔ A single-
displacement reaction, also known as a single-replacement reaction, is a
type of chemical reaction where an element reacts with a compound and
takes the place of another element in that compound. This type of
reaction is typically pictured like this: Here, A replaces B in the
compound BC
Flame test - ACCURATE ANSWERS✔✔ flame test is an 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;
see flame color.
Precipitation reaction - ACCURATE ANSWERS✔✔ A precipitation
reaction refers to the formation of an insoluble salt when two solutions
containing soluble salts are combined. The insoluble salt that falls out of
solution is known as the precipitate, hence the reaction's name.
Precipitation reactions can help determine the presence of various ions
in solution.
