Food Chem
Chem Fun Facts Pt 1
Chem Fun Facts Pt 2
Historical People
Chemistry at UNT
100
Why do Rice Krispies go "snap, crackle, and pop" when milk is added?
milk enters the pores and compressed air is released
100
Which elements are liquid at room temperature? (2)
Bromine & mercury
100
Why does ice float on water?
density of ice is around 10% lower than water
100
Who created the plum pudding model?
Rutherford
100
Name 4 professors that currently teach general chemistry.
Answers vary
200
Beans produce gas because they break down what type of compound?
oligosaccharides
200
Can anthropomorphic (human-shaped) molecules be made?
Yes
200
Can table sat adopt other stoichiometry than NaCl?
Yes, Na2Cl, Na3Cl, Na2Cl2, NaCl7
200
Who discovered the electron?
JJ Thomson
200
Name 2 professors that currently teach organic chemistry.
Answers vary
300
What chemical makes chili peppers spicy?
capsaicin
300
Why does the planet Uranus, rich in methane & hydrogen, not burn?
no oxygen
300
What color is oxygen?
colorless, odorless, & tasteless as a gas but if cooled, becomes pale blue color
300
Who was the first woman to win a Nobel prize in chemistry?
Marie Curie
300
True or False: Microsoft is a sponsor for UNT chemistry research.
True!
400
How does "instant" pudding thicken without heating?
corn starch absorbs the liquid and swells
400
What are Olympic gold metals made of?
98.8% silver % 1.2% gold
400
When is the Mole Day?
100 - for correct season
200 - for correct month
300 - for correct date
400 - for correct time
October 23 between 6:02am and 6:02pm
(6:02 10/23 = Avogadro's constant)
400
Who spent much of their life studying thermodynamics and statistical mechanics and died by his own hand?
Boltzmann
400
How many faculty members conduct research in analytical chemistry?
7
500
What type of compounds in onions make you cry?
methionine, cysteine, & Propanethial-S-oxide (sulfur containing compounds)
500
What is the hardest substance in your body?
enamel made of calcium phosphate
500
Can helium be frozen? (at atmospheric pressure)
no
500
Who are the founding fathers of quantum mechanics?
Bohr, Planck, and Einstein
500
Which UNT chemistry professor set out to travel to the birthplace of all 114 elements in the periodic table? They traveled to 28 different countries over the course of 12 years to do so!
Dr. Jim Marshall