Chemistry comp 1
What is the freezing point of water
0 degrees Celsius
Oxygen occurs in the Free State as
02
The percentage by way to formaldehyde in formalin is
37%
The number of fluid ounces in a 25 index arterial fluid needed to prepare 1 gallon of solution with strength of 1% would be
5.1
Decomposition of human body is
A chemical change
Which of the following is the result of two or more elements chemically United and a definite proportion by weight
A compound
the formula R - OH is
A general formula
Which of the following would not be found in a pre injection fluid
A high concentration of formaldehyde
Two or more substances that are combined together but are not chemically combined form
A mixture
The function methanal in embalming fluid is
A preservative
a group of atoms functioning as a single atom and chemical reaction
A radical
Sodium lauryl sulfate is used in embalming fluids as
A surfactant
Another name for ethanoic acid is
Acetic acid
Oxygen means
Acid former
which of the following would not be present in a cavity fluid
Active dye
Upon hydrolyzes proteins yield
Amino acids
the hydrolysis of proteins yield
Amino acids
Sodium citrate when used in embalming fluid functions as a
Anticoagulant
Citrates in oxalates are usually added to involving fluids to act as
Anticoagulants
An abbreviation for the name of an element is
Atomic symbol
The digestion of cells by means of their own enzymes is
Autolysis
If a solution is acid its pH will be
Below 7
Adipocere is a derivative of
Body fat
Which of the following chemical so when contained in water in the form of salts causes hard water
Calcium
Organic chemistry is a study of
Carbon compounds
What type of embalming fluid contains high concentrations of disinfectants and preservatives but generally lack active dyes and other modifying agents
Cavity fluids
The science that deals with the nature of matter and the changes that matter undergoes is
Chemistry
Proteins are compounds
Composed of many amino acids linked together
Substances that can be decomposed or separated into simpler substances are
Compounds
Which of the following is not important in determining the shelf life of an arterial fluid
Cost of the fluid
The shrinking of blood cells in a hypertonic salt solution is called
Crenation
Substances which will pass through the pores of animals and vegetable membranes are
Crystalloids
What is the function of plaster of Paris in hardening compounds
Dehydration
What is benzaldehyde used for in embalming fluids
Deodorant
What is methyl solicitate used for in embalming fluids
Deodorant
Which of the following substances is a buffer of arterial fluid
E. D. T. A
Fundamental types of matter that cannot be converted into other kinds of ordinary chemical means are
Elements
The class of compounds used in embalming fluid as perfuming agents
Esters
What substance is changed into adipocere by the suponification process
Fats
How many maine classes of inorganic compounds are there
For
Paraformaldehyde is a polymer of
Formaldehyde
Which state of matter has no definite volume and no definite shape
Gases
hey trihydroxy alcohol found in both inbalming fluids and in the structure of lipids and fats is
Glycerol
Chlorine is
Halogen
Which of the following is not a characteristic of jaundice fluid
High index of formaldehyde
A substance in embalming fluid which serves to retain moisture in the body is known as
Humectant
In arterial fluids glycol is can act as
Humectants
The main constitute of an acid is
Hydrogen
The most abundant element in the universe is
Hydrogen
The most abundant element on earth is
Hydrogen
Which of the following is not a hazardous substance used in embalming fluids
Hydrogen hydroxide
the splitting apart of a compound by water is called
Hydrolysis
The study of matter derived from inanimate or lifeless thing this is
Inorganic chemistry
What is the study of non carbon compounds
Inorganic chemistry
Compounds which have identical molecular formulas but different structural formulas
Isomers
Solutions that have the same osmotic pressure are said to be
Isotonic
Which of these classified as a physical property of water
It expands when it freezes
Mercuric chloride is a good disinfectant but
It is prohibited by law
Deodorants are used in embalming fluid zas
Masking agents
Anything that occupies space and possesses mass is
Matter
Polymerisation of formaldehyde is inhibited by the addition of
Methanol
The formula for magnesium chloride is
MgCl 2
Which of the following can be separated by physical means
Mixtures
What is paradichlorobenzene used for in embalming powders
Mold inhibitors
The most common form of oxygen is
Molecular oxygen
Two or more atoms of the same element form
Molecule
Two or more atoms of different elements form
Molecules
What is the electrical charge of an electron
Negative
The swelling of a body during embalming is due to
Osmosis
Borax is used in embalming powders
PH adjuster
acidity or alkalinity is conveniently expressed by a scale of
PH values
which of the following is only used as a filler in autopsy chemical mixtures
Perlite
The characteristics of a substance observed with out altering the composition of it are
Physical properties
Incharge group of Adam functioning as a single unit of chemical reaction is
Polyatomic ion
Of the following the class of chemicals that are used as humectants and embalming fluids are
Polyhydric alcohols
The oxidation number for the ammonium radical is
Positive one
Phenol is used in embalming fluids as a
Preservative
Formaldehyde in terms of embalming is used for
Preservative and disinfectant
Water of high mineral content such as hard water tends to
Promote blood clotting
A positively charged particle in the nucleus of an atom is
Proton
Which term is used as a synonymous term to polyatomic ion
Radical
Of the following the one that is used in embalming fluid as an anticoagulant is
Sodium citrate
Paraformaldehyde is formaldehyde in a
Solid form
Which of the following is a physical property of matter
Solubility, specific gravity, density
A humectant commonly used in embalming fluid is
Sorbitol
The passage of a solid substance directly into the gaseous state is
Sublimination
Which of the following solutions contains the most solute
Supersaturated
The chemical used in embalming fluid to reduce surface tension and aid in penetration is known as
Surfactant
Which of the following is not a chemical change
Tearing a paper
The total amount of formaldehyde required to preserve all of the protein in the body is
The formaldehyde
The atomic number of an element is equivalent to
The total number of its protons or electrons
Which of the following statements is FALSE concerning arterial fluids
They are normally injected into the body cavities
The function of glycerol in embalming fluid is
To act as a humectant
A solution in which more solute can be dissolved at a given temperature is
Unsaturated
Water when used in embalming fluid is used as a
Vehicle
in use within embalming fluids water and methyl alcohol are two examples of
Vehicles
Of all chemical compounds the most depended upon by plants and animals is
Water
The important to vehicle for an arterial solution is
Water
The passage of a solvent through a semipermeable membrane from an area of lesser concentration to an area of higher concentration is
osmosis
the chemical formula for NaOH notes which of the following compounds
sodium hydroxide
