Chem 1LD Safety Practical Exam Newest 2026
Questions and Correct Detailed Answers Already
Graded A+
If no safety precautions are followed the severity of the hazard is [ Select ] and
the probability of the event happening is [ Select ] . This leads to a risk level that is
[ Select ] .Which measure should be taken to manage the risk? - CORRECT
ANSWER-moderate
possible
medium
all of these
Which of the following would you use to determine the severity of a hazard? -
CORRECT ANSWER-GHS symbols
chemical amounts used
NFPA fire ratings
PELS (permissible exposure limits)
Lethal dose 50 values
,what are the steps for using a digital balance. - CORRECT ANSWER-Determine
the container
Place the weighing container
Use a spatula to transfer
Close the draft shields
Use a brush or paper to clean
A solution is created when a small amount of
solute dissolves in a large amount of __________ - CORRECT ANSWER-solvent
When a solution's concentration is reported in moles of solute
per liter of solution, the concentration is reported as a __________ - CORRECT
ANSWER-molarity
When a solution's concentration is reported in moles of solute per kilograms of
solvent, the concentration is reported as a ________ - CORRECT ANSWER-
molality
The most probably laboratory emergencies are chemical spills, minor
burns and cuts, and fires. Which of the following statements are TRUE
, about responding to emergencies? - CORRECT ANSWER-Know where the
stairwells are.
All laboratories must have two exits.
Stay calm
If possible turn off lab equipment before leaving lab for a fire alarm
Which of the following common household products contain flammable
chemicals? - CORRECT ANSWER-antifreeze
gasoline
rubbing alcohol
nail polish remover
Which of the following are ways to stop a fire? - CORRECT ANSWER-limit
quantities of flammable substances in work area
ground metal container to prevent static electricity
remove ignition sources
place a beaker over a small flame to remove oxygen
Which of the following statements are true about flammability? - CORRECT
ANSWER-A fire cannot start above or below a vapor's flammability limits.
Questions and Correct Detailed Answers Already
Graded A+
If no safety precautions are followed the severity of the hazard is [ Select ] and
the probability of the event happening is [ Select ] . This leads to a risk level that is
[ Select ] .Which measure should be taken to manage the risk? - CORRECT
ANSWER-moderate
possible
medium
all of these
Which of the following would you use to determine the severity of a hazard? -
CORRECT ANSWER-GHS symbols
chemical amounts used
NFPA fire ratings
PELS (permissible exposure limits)
Lethal dose 50 values
,what are the steps for using a digital balance. - CORRECT ANSWER-Determine
the container
Place the weighing container
Use a spatula to transfer
Close the draft shields
Use a brush or paper to clean
A solution is created when a small amount of
solute dissolves in a large amount of __________ - CORRECT ANSWER-solvent
When a solution's concentration is reported in moles of solute
per liter of solution, the concentration is reported as a __________ - CORRECT
ANSWER-molarity
When a solution's concentration is reported in moles of solute per kilograms of
solvent, the concentration is reported as a ________ - CORRECT ANSWER-
molality
The most probably laboratory emergencies are chemical spills, minor
burns and cuts, and fires. Which of the following statements are TRUE
, about responding to emergencies? - CORRECT ANSWER-Know where the
stairwells are.
All laboratories must have two exits.
Stay calm
If possible turn off lab equipment before leaving lab for a fire alarm
Which of the following common household products contain flammable
chemicals? - CORRECT ANSWER-antifreeze
gasoline
rubbing alcohol
nail polish remover
Which of the following are ways to stop a fire? - CORRECT ANSWER-limit
quantities of flammable substances in work area
ground metal container to prevent static electricity
remove ignition sources
place a beaker over a small flame to remove oxygen
Which of the following statements are true about flammability? - CORRECT
ANSWER-A fire cannot start above or below a vapor's flammability limits.
