CHEM 1LD - 2026 Practical Safety Questions With
Complete Solutions
acute toxicants Correct Answers are fatal if exposed to small
amounts
acute toxicity Correct Answers ability of a chemical to do
damage with a single dose
aspiration hazards Correct Answers can be fatal if swallowed
Calculate the atom economy of reaction between
cinnamaldehyde and acetophenone in project 2. (See Figure 2).
Report your answer with 2 significant figures. Correct Answers
93
carcinogens Correct Answers cause cancer
chronic toxicity Correct Answers ability of a chemical to do
damage after multiple doses
corrosives Correct Answers causes serve skin burns
eye hazards Correct Answers cause irreversible damage to the
eye
If the hazard category is __________, the chemical is a
combustible. Correct Answers HC 4
If the hazard category is __________, the chemical is extremely
flammable. Correct Answers HC 1
, If the number __________ appears in this section, the chemical
is a combustible, it will catch fire when heated. Correct
Answers 2
If the number __________ appears in this section, the chemical
is extremely flammable. Correct Answers 4
LC(50) Correct Answers lethal concentration that causes death
in 50% of the tested animal population.
LD(50) Correct Answers lethal dose that kills 50% of the
experimental animals dosed
Match the chemical to its fate in the human body.
acetaminophen (tylenol) Correct Answers metabolized and
removed by liver
Match the chemical to its fate in the human body.
DDT Correct Answers bioaccumulation - stored in fat
Match the chemical to its fate in the human body.
ethylene glycol Correct Answers metabolized to calcium
oxalate, damaging the kidneys and brain
Match the following risk terms to their definitions.
hazard Correct Answers potential source of danger or harm
Complete Solutions
acute toxicants Correct Answers are fatal if exposed to small
amounts
acute toxicity Correct Answers ability of a chemical to do
damage with a single dose
aspiration hazards Correct Answers can be fatal if swallowed
Calculate the atom economy of reaction between
cinnamaldehyde and acetophenone in project 2. (See Figure 2).
Report your answer with 2 significant figures. Correct Answers
93
carcinogens Correct Answers cause cancer
chronic toxicity Correct Answers ability of a chemical to do
damage after multiple doses
corrosives Correct Answers causes serve skin burns
eye hazards Correct Answers cause irreversible damage to the
eye
If the hazard category is __________, the chemical is a
combustible. Correct Answers HC 4
If the hazard category is __________, the chemical is extremely
flammable. Correct Answers HC 1
, If the number __________ appears in this section, the chemical
is a combustible, it will catch fire when heated. Correct
Answers 2
If the number __________ appears in this section, the chemical
is extremely flammable. Correct Answers 4
LC(50) Correct Answers lethal concentration that causes death
in 50% of the tested animal population.
LD(50) Correct Answers lethal dose that kills 50% of the
experimental animals dosed
Match the chemical to its fate in the human body.
acetaminophen (tylenol) Correct Answers metabolized and
removed by liver
Match the chemical to its fate in the human body.
DDT Correct Answers bioaccumulation - stored in fat
Match the chemical to its fate in the human body.
ethylene glycol Correct Answers metabolized to calcium
oxalate, damaging the kidneys and brain
Match the following risk terms to their definitions.
hazard Correct Answers potential source of danger or harm
