AP Chem
Logic Puzzle
A student is working in the chemical storage area at Torrey Pines and they find some unlabelled bottles filled with chemicals. They also find a list of chemicals. Since there are 26 bottles and 26 chemicals on the list, they assume the list refers to the unknown chemicals. The student labels the chemicals A-Z. There are also some hints left by a chemist on another sheet of paper and the student makes their own observations and performs several experiments.
Bottle 1 contains a black solid that sublimes to a purple vapor.
Bottle 2 has an orange liquid.
Bottle 3 has a yellow solid that can be changed orange upon the addition of acid.
Bottle 4 has a white solid that dissolves readily in water. Upon addition of water and compound O it turns brownish.
Bottle 6 has a common element in its highest possible oxidation state.
Bottle 7 reacts to make a gas with a distinct odor.
Bottle 8 oxidized substance K and caused two color changes.
Bottle 9 was catalytically decomposed by the contents of bottle 8.
Bottle 11’s contents change the color of bottle 10’s contents but not bottle 14’s.
Bottle 12’s contents were acidic and colored.
Bottle 13 reacts with the contents of bottle 5 and the contents of bottle 17.
Bottle 14 reacts with the contents of bottle 5 and the contents of bottle 17.
Bottle 15’s contents caused a color change in the student’s skin.
Bottle 16’s contents melted when the student handled it.
Bottle 17 can be made by taking one of the combustion products of “zip fuel” and adding it to water and compound O.
Bottle 18’s contents form a precipitate with the contents of bottle 10.
Bottle 19 has a pure element.
Bottle 20 is a liquid element.
Bottle 21 gives a red flame test.
Bottle 22 gives an orange flame test.
Bottle 23’s contents have increased in value a great deal over the past few years.
The substance in bottle 24 dissolves when it is added to the compound in bottle 5.
Bottle 25 was insoluble but could be made soluble through a reaction with the compound L, O, or C.
Bottle 26’s contents were left out and some of the giant Torrey Pines rats ate it and died.
Substance N is an element.
Substance B has a radioactive isotope absorbed by the thyroid
Substance Q is a mystery to the student so he asks Mr. Belyea. Mr. Belyea thinks the answer is so obvious that he assigns the student to find how old the sample is using a balance, information from the internet and a scintillation counter.
Substance G is insoluble but can be rendered soluble with two different types of substances.
Substance K turns brown when it mixes with the contents of Bottle 1.
Substance W doesn’t dissolve in water. The student left it out in the air and after some time less solid and a color change were seen.
Substances U and M are green in a Bunsen burner flame.
Substance R was made using aqua regia.
Substance S can substitute for substance A in many reactions but not in the reaction with substance Z.
Substance A has a distinct color.
Substance C has a distinct color. Photons of this color have shorter wavelength than photons of the color of substance A.
Substance X is an element with two more valence electrons than the parent atom of the cation in substance 13.
Substance Z precipitated when some P was added but dissolved when more P was added.
Substance V is found in all the bottles in a large amount.
The cation in substance W can disproportionate to make a soluble ion and an atom.
Substance J forms a precipitate with substance I.
Substance T is used much less today than in earlier times.
Substance Q is a solid.
Substance U is an exception to one of the rules of chemistry.
Substance H is a metal but not as metallic as most other metals.
Substance I forms an precipitate with substance K that is a different color than the one it makes with the contents of bottle 22.
The ion in substance Y is formed at the anode of a Daniell cell.
Substance G reacts with U or A but not in the same way.
Substance D can be used in yellow fireworks.
Substance P is a _ _ _ _. It can be a ______or it can be a
______- ______.
Substance Z is often the partner of P and it is the oxidizing agent in some Daniell cells.
Substance F should have been stored in a brown plastic bottle instead of a colorless bottle made out of the compound in bottle 24.
Substance O is a solid that is unstable and reacts with water to make a strong electrolyte.
Substance A will make your fingers feel slippery.
Substance L has one element that is good for you, one that is bad for you and one you use a lot of all the time.
Substance E isn’t like most others of its type.
Substance B wouldn’t be there if somebody left the cap on loosely.
Bottle 1 is ______and is labeled with the letter ___.
Bottle 2 is ______and is labeled with the letter ___.
Bottle 3 is ______and is labeled with the letter ___.
Bottle 4 is ______and is labeled with the letter ___.
Bottle 5 is ______and is labeled with the letter ___.
Bottle 6 is ______and is labeled with the letter ___.
Bottle 7 is ______and is labeled with the letter ___.
Bottle 8 is ______and is labeled with the letter ___.
Bottle 9 is ______and is labeled with the letter ___.
Bottle 10 is ______and is labeled with the letter ___.
Bottle 11 is ______and is labeled with the letter ___.
Bottle 12 is ______and is labeled with the letter ___.
Bottle 13 is ______and is labeled with the letter ___.
Bottle 14 is ______and is labeled with the letter ___.
Bottle 15 is ______and is labeled with the letter ___.
Bottle 16 is ______and is labeled with the letter ___.
Bottle 17 is ______and is labeled with the letter ___.
Bottle 18 is ______and is labeled with the letter ___.
Bottle 19 is ______and is labeled with the letter ___.
Bottle 20 is ______and is labeled with the letter ___.
Bottle 21 is ______and is labeled with the letter ___.
Bottle 22 is ______and is labeled with the letter ___.
Bottle 23 is ______and is labeled with the letter ___.
Bottle 24 is ______and is labeled with the letter ___.
Bottle 25 is ______and is labeled with the letter ___.
Bottle 26 is ______and is labeled with the letter ___.
List:
Potassium permanganate
Hydrogen peroxide
Copper sulfate
Barium chloride
Ammonia
Iron (III) chloride
Gallium
(unreadable ends in ine)
Potassium chromate
Potassium hydroxide
Dinitrogen pentoxide
Boric acid
Charcoal
Mercury
Strontium hydroxide
Sodium chloride
Potassium iodide
Gold chloride
Silicon dioxide
Copper (I) chloride
Arsenic
Aluminum hydroxide
Zinc hydroxide
Silver nitrate
(unreadable ends in ine)