Chemistry
The oxidation number for the Ammonium radicle is
+1
What is the freezing point of water
0 degrees Celcius
The percentage by weight of formaldehyde in formalin is
37%
How many classes of inorganic compounds are there
4
The number of fluid ounces of a 25 index arterial fluid needed to prepare one gallon (128 fl. oz) of solution with a strength of one percent would be
5.1
Which of the following is the result of 2 or more elements chemically united in a definate proportion by weight
A compound
The formula R-OH is
A general formula
Chlorine is
A halogen
Which of the following would NOT be found in a pre-injetcion fluid
A high concentration of formaldehyde
2 or more substances that are combined together but are NOT chemically combined form
A mixture
2 or more atoms of the same elements form
A molecule
A charged group of atoms functioning as a single unit in a chemical reaction is
A polyatomic ion
The function of methanal in embalming fluids is
A preservative
A positively charged particle in the nucleus of an atom is
A proton
A group of atoms functioning as a single atom in a chemical reaction
A radical
Another name for ethanoic acid is
Acetic acid
Oxygen means
Acid former
Which of the following would NOT normally be present in cavity fluid
Active dyes
Borax is used in embalimg fluids to
Adjust pH
The hydrolysis of proteins yeilds
Amino acids
Upon hydrolysis, proteins yeild
Amino acids
Sodium citrate, when used in embalming fluids, functions as a/an
Anticoagulant
Citrates and oxalates are usually added to embalming fluids to act as
Anticoagulants
The digestion of cells by means of their own enzymes is called
Autolysis
If a solution is acid, its pH will be
Below 7
Adipocere is a derivative of
Body fats
Which one of the following chemicals, 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 fluids contain high concentrations of disinfectants and preservatives but generally lack active dyes and other modifying agents
Cavity fluids
Decomposition of the human bosy is a
Chemical change
The science that deals with the nature of matter and the changes that matter undergoes is
Chemistry
Proteins are compounds
Composed of may amino acids linked together
Substances that can be decomposed or seperated into singular substances are
Compounds
Which of the following is NOT important in determining the shelf-life of an arterial fluid
Cost of fluid
Substances which will pass through the pores of animals and vegetable mambranes are
Crystalloids
What is the function of plaster or paris in hardening compound
Dehydration
What is benzaldehyde used for in embalming
Deodorant
What is methyl salicylate used for in embalming fluids
Deorodant
Eosine, ponceau, and erythrosine are used in embalming fluids as
Dyes
Which of the following substances is used as a buffer in arterial fluid
EDTA
Fundamental types of matter that cannot be converted into other kinds by ordinary chemical means are
Elements
What substance is changed into adipocere by the saponification process
Fats
Paraformaldehyde is a polymer of
Formaldehyde
Which state of matter has no definate volume and no definate shape
Gases
A trihydric alcohol used in both embalming fluids and in the structure of lipids and fats is
Glycerol
Which of the following is NOT characteristic of a jaundice fluid
High index of formaldehyde
A substance in embalming fluid which serves to retain moisture in the body is known as a
Humectant
In arterial fluids, glycols act as
Humectants
The main constituent of an acid is
Hydrogen
The most abundant element in the universe 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 things is
Inorganic chemistry
What is the study of non-carbon compounds
Inorganic chemistry
Compounds which have identical molecular formulas but different structural formulas are
Isomers
Solutions that have the same osmotic pressure as said to be
Isotonic
Which of these is classified as a physical property of water
It expands when it freezes
Deorodants are used in embalming fluids as
Masking agents
Anything that occupies space and possesses mass is
Matter
Polymerixation of formaldehyde is inhibited by the addition of
Methanol
The formula for Magnesium Chloride is
MgCl2
Which of the following can be seperated by physical methods
Mixtures
What is paradichlorobenzene used for in embalming powders
Mold inhibitor
The most common form of oxygen is
Molecular oxygen
2 or more atoms of different elements forms
Molecules
What is the electrical charge of an electron
Negative
Oxygen occurs in the free state as
O2
The passage of a solvent through a semipermeable membrane from an area of lesser concentration to an area of higher concentration is
Osmosis
The swelling of a body during embalming is due to
Osmosis
The most abundant element on earth is
Oxygen
Which of the following is used only as a filler in autopsy chemical mixtures
Perlite
Of the following, the class of chemicals that are used as humectants in embalming fluids are
Polyhydric alcohols
Phenol is used in embalming fluids as a
Preservative
Formaldehyde in terms of embalming is used as a
Preservative and Disinfectant
Mercuric cholride is a good disinfectant. It is
Prohibited by law
Water of high mineral content, such as hard water, tends to
Promote blood clotting
Which term is used as a synonymous term for polyatomic ion
Radical
Of the following, the one that is used in embalming fluids as an anticoagulant is
Sodium citrate
The chemical formula of NaOH denotes which of the following compounds
Sodium hydroxide
Paraformaldehyde is formaldehyde in a
Solid state
Which of the following is a physical property of matter
Solubility, Specific Gravity, Density
A humectant commonly used in embalming fluids is
Sorbitol
The passage of a solid substance directly into the gaseous state is
Sublimation
Which of the following solutions contains the most solute
Supersaturated
What are sulfonate compounds used for in embalming fluids
Surface Active Agents
Sodium lauryl sulfate is used in embalming fluids as a
Surfactant
The chemical used in embalming fluids to reduce surface tension and to aid in penetration, is known as a/an
Surfactant
Which of the following is not a chemical change
Tearing paper
An abbreviation for the name of an element is
The atomic symbol
The class of compounds used in embalming fluids as perfuming agents is
The esters
The total amount of formaldehyde required to preserve all of the protein in the body is
The formaldehyde demand
The atomic number of an element is equivalent to
The total number of it's protons or electrons
Which of the following statements is FALSE concerning arterial fluids
They are normally injected into body cavities
The function of glycerol in embalming fluids 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 fluids, is used as a
Vehicle
In use with embalming fluids, water and methyl alcohol are 2 examples of
Vehicles
Of all compounds, the most depended upon by plants and animals is
Water
The important vehicle for an arterial solution is
Water
Acidity or alkalinity is conveniently expressed by a scale of
ph values
