Category

Chemistry 71 questions.
The science of chemistry
Pub quiz question 5900 by pjh2
  1. Question: Q: Which element, discovered in 1898, takes its name from the Greek word for 'hidden?'
  2. Answer: A: Krypton
  3. Notes: *: Greek: Kryptos
  4. Categories: Science (6) Chemistry (5)
Pub quiz question 8407 by pjh
  1. Question: Q: How many molecules of oxygen does ozone have?
  2. Answer: A: Three
  3. Categories: Science (2) Chemistry (2)
Pub quiz question 6292 by pjh2
  1. Question: Q: What gas makes up approximately 74% of the sun's mass?
  2. Answer: A: Hydrogen
  3. Categories: Space (4) Physics (4) Chemistry (4)
Pub quiz question 6294 by pjh2
  1. Question: Q: What is the second most common element in the sun after hydrogen?
  2. Answer: A: Helium
  3. Categories: Chemistry (6) Physics (5) Space (5)
Pub quiz question 76 by pjh2
  1. Question: Q: Which two chemical elements make up water?
  2. Answer: A: Hydrogen and Oxygen
  3. Categories: General Knowledge (1) Chemistry (1)
  4. Times used:
Pub quiz question 6564 by pjh2
  1. Question: Q: What radioactive element was used in the Fat Boy bomb dropped on Nagaski, but in in the Little Boy dropped on Hiroshima?
  2. Answer: A: Plutonium
  3. Categories: Chemistry (7)
Pub quiz question 6795 by pjh2
  1. Question: Q: What valuable metal has the chemical symbol Au?
  2. Answer: A: Gold
  3. Categories: Chemistry (1) Science (1)
Pub quiz question 85 by pjh2
  1. Question: Q: What is the common name for ascorbic acid?
  2. Answer: A: Vitamin C
  3. Categories: Chemistry (3) General Knowledge (3)
Pub quiz question 6567 by pjh2
  1. Question: Q: Which element with the symbol I is found in seawater and has a name based on the Greek for violet?
  2. Answer: A: Iodine
  3. Categories: Chemistry (4)
Pub quiz question 5884 by pjh2
  1. Question: Q: What is the chemical symbol for tungsten?
  2. Answer: A: W
  3. Categories: Science (4) Chemistry (4)