Thanatochemistry Exam 2023 with complete solution
Accessory Chemicals
a group of chemicals used in addition to vascular and cavity embalming fluids; most are
applied to the body surface
Acid (Arrhenius)
a substance that yields hydrogen or hydronium ions in an aqueous solution
Acid (Bronsted-Lowry)
a substance that yields a proton
Acid (Lewis)
a substance that accepts a pair of electrons
Adipocere (gravewax)
a wax-like material produced by saponification of body fat in a body buried in alkaline
soil
Amphoteric
any compound that can act as both an acid and a base in a solution (ex: amino acid)
Anion
a negatively charged atom
Anticoaulants
used to keep the blood in the liquid state; chemicals that retard the tendency of the
blood to become more viscous
Aqueous solution
a solution in which water is the solvent
Arterial fluid
the concentrated, preservative embalming chemical that will be diluted with water to
form the arterial solution for injection into the arterial system during vascular embalming
Atom
the smallest particle of an element that has all the properties of the element
Autopsy chemicals
those chemicals specifically designed for use in the preparation of bodies that have
been autopsied
Base (Arrhenius)
a substance that yields hydroxide ions in an aqueous solution
Base (Bronsted-Lowry)
a substance that accepts a proton
Base (Lewis)
a substance that donates a pair of electrons
Boiling
the rapid passage of liquid particles to the vapor state by forming bubbles through the
action of heat
Buffers
substances that in solution are capable of neutralizing, within limits, both acids and
bases and thereby maintaining the original or constant pH of the solution
Cation
a positively charged atom or group of atoms
Cavity fluids
, concentrated embalming chemicals that are injected into the cavities of the body
following aspiration in cavity embalming
Chemical change
a change in which a new substance or substances are produced that have entirelly
different properties from the original substance because the chemical composition has
changed
Chemical properties
characteristics that can be observed when a substance is interacting with other
substances resulting in a change of chemical composition
Chemistry
the branch of natural science that is concerned with the description and classification of
matter, with the changes that matter undergoes, and with the energy associated with
each of these changes
Colloid
a solution-like system in which the size of the solute particle is between 1 and 100
nanometers; can pass through filters but not membranes
Combustion
the rapid oxidation or burning that produces heat and light
Compound
a substance consisting of two or more atoms combined chemically in definite
proportions by mass
Concentrated solution
a solution containingn a relatively large amount of solute
Concentration
the ratio of mass or volume of a solute to the mass or volume of the solution or solvent
Condensation
a change of state of matter from a gas to a liquid
Covalent bond
a chemical bond in which a pair of electrons is shared between two atoms
Crystallization
the process by which a substance is given definite form
Decay
the gradual decomposition of dead organic matter by the enzymes of AEROBIC
bacteria
Dehydration (dessication)
the removal of water from a substance
Density
the ratio of mass of a substance to its volume
Deodorants
chemicals having the capability of displacing an unpleasant odor or of altering an
unpleasant odor so that it is converted to a more pleasant one
Diatomic ion
an ion composed of two atoms
Diffusion
the movement of molecules or other particles in solution from an area of greater
concentration to an area of lesser concentration
Accessory Chemicals
a group of chemicals used in addition to vascular and cavity embalming fluids; most are
applied to the body surface
Acid (Arrhenius)
a substance that yields hydrogen or hydronium ions in an aqueous solution
Acid (Bronsted-Lowry)
a substance that yields a proton
Acid (Lewis)
a substance that accepts a pair of electrons
Adipocere (gravewax)
a wax-like material produced by saponification of body fat in a body buried in alkaline
soil
Amphoteric
any compound that can act as both an acid and a base in a solution (ex: amino acid)
Anion
a negatively charged atom
Anticoaulants
used to keep the blood in the liquid state; chemicals that retard the tendency of the
blood to become more viscous
Aqueous solution
a solution in which water is the solvent
Arterial fluid
the concentrated, preservative embalming chemical that will be diluted with water to
form the arterial solution for injection into the arterial system during vascular embalming
Atom
the smallest particle of an element that has all the properties of the element
Autopsy chemicals
those chemicals specifically designed for use in the preparation of bodies that have
been autopsied
Base (Arrhenius)
a substance that yields hydroxide ions in an aqueous solution
Base (Bronsted-Lowry)
a substance that accepts a proton
Base (Lewis)
a substance that donates a pair of electrons
Boiling
the rapid passage of liquid particles to the vapor state by forming bubbles through the
action of heat
Buffers
substances that in solution are capable of neutralizing, within limits, both acids and
bases and thereby maintaining the original or constant pH of the solution
Cation
a positively charged atom or group of atoms
Cavity fluids
, concentrated embalming chemicals that are injected into the cavities of the body
following aspiration in cavity embalming
Chemical change
a change in which a new substance or substances are produced that have entirelly
different properties from the original substance because the chemical composition has
changed
Chemical properties
characteristics that can be observed when a substance is interacting with other
substances resulting in a change of chemical composition
Chemistry
the branch of natural science that is concerned with the description and classification of
matter, with the changes that matter undergoes, and with the energy associated with
each of these changes
Colloid
a solution-like system in which the size of the solute particle is between 1 and 100
nanometers; can pass through filters but not membranes
Combustion
the rapid oxidation or burning that produces heat and light
Compound
a substance consisting of two or more atoms combined chemically in definite
proportions by mass
Concentrated solution
a solution containingn a relatively large amount of solute
Concentration
the ratio of mass or volume of a solute to the mass or volume of the solution or solvent
Condensation
a change of state of matter from a gas to a liquid
Covalent bond
a chemical bond in which a pair of electrons is shared between two atoms
Crystallization
the process by which a substance is given definite form
Decay
the gradual decomposition of dead organic matter by the enzymes of AEROBIC
bacteria
Dehydration (dessication)
the removal of water from a substance
Density
the ratio of mass of a substance to its volume
Deodorants
chemicals having the capability of displacing an unpleasant odor or of altering an
unpleasant odor so that it is converted to a more pleasant one
Diatomic ion
an ion composed of two atoms
Diffusion
the movement of molecules or other particles in solution from an area of greater
concentration to an area of lesser concentration
