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Test Bank For Chemistry 11th Edition By Raymond Chang Golds
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Test Bank For Chemistry 11th Edition By Raymond Chang Golds
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Test Bank For Chemistry 11th Edition ByRaymond Chang Golds
How would you write the conversion reaction from oil to biodiesel?
A)Oil + alcohol + catalyst -> biodiesel + glycerol + catalyst
B)Oil + alcohol + catalyst -> biodiesel
C)Biofuel + alcohol + catalyst -> catalyst + biofuel + glycerol
D)Oil + catalyst -> biodiesel + glycerol + alcohol - ANSWERA)Oil + alcohol + catalyst
-> biodiesel + glycerol + catalyst
Which of the following hazards does not apply for methanol?
A)Flammable
B)Oxidizing
C)Health Hazard
D)Toxic - ANSWERB)Oxidizing
Which P-sentence indicates why you should work in the fume hood when using
methanol?
A)P363 and P330
B)P301 and P310
C)P210 and P233
D)P260 and P271 - ANSWERD)P260 and P271
Methanol is volatile because it has a low boiling point. Have a look at the safety
sheet. What is the boiling point of methanol?
A)54 degrees Celsius
B)76 degrees Celsius
C)87 degrees Celsius
D)65 degrees Celsius - ANSWERD)65 degrees Celsius
Why is it important to work in the fume hood during this step?
A)Methanol gets very volatile at high temperatures.
B)The magnetic stirrer splashes base in all directions
C)Sodium hydroxide is flammable
D)Produced biodiesel is explosive - ANSWERA)Methanol gets very volatile at high
temperatures.
There is some remaining sodium hydroxide-methanol solution that we have to
dispose of. This solution poses several hazards, which of the following does NOT
apply for the sodium hydroxide methanol solution?
A)Explosive
B)Corrosive
C)Flammable
D)Toxic - ANSWERA)Explosive
, Which of these hazards could be removed by adding small amounts of certain
solution?
A)Flammability
B)Toxicity
C)Corrosiveness
D)Neither of them - ANSWERC)Corrosiveness
How should you dispose of the remaining methanol solution?
A)Evaporate it in the fume hood
B)Into the organic solvent waste
C)Flush it down the sink
D)Burn it inside the hood - ANSWERB)Into the organic solvent waste
Imagine the two following scenarios:
You pour a small amount of non-halogenated solvent into the halogenated waste.
You pour a small amount of halogenated solvent into the non-halogenated waste.
Which damage analysis is right?
A)They are equally bad
B)Small amounts do not matter - both are no problem
C)1 is worse than 2
D)2 is worse than 1 - ANSWERD)2 is worse than 1
Which of the following solvents would be disposed in the halogenated solvent
waste?
A)Hexane
B)Acetone
C)DCM (Dichloromethane)
D)Ethanol - ANSWERC)DCM (Dichloromethane)
"I passed out because of the blast. What did you do after you pulled me out of the
lab?"
A)Extinguish the fire
B)Close the fume hood
C)Evacuate the building
D)Trigger the alarm and break the circuit - ANSWERD)Trigger the alarm and break
the circuit
"Why did you decide not to grab the fire extinguisher and fight the fire?"
A)I needed to save my LabPad
B)It's electrical and I already turned it off
C)There was no extinguisher
D)Too dangerous - ANSWERD)Too dangerous
Do you remember the symbol for oxidizing reagents?
A)An exclamation mark
B)A square with fragments
C)A circle with flames
D)A person with symptoms - ANSWERC)A circle with flames
Periodic Table (Principles)
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