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High School Set 12 (2018) - Round 17 - Question 12

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TOSS-UP: Chemistry Multiple Choice

The precipitation reaction caused by the addition of potassium chloride to aqueous [AY-kwee-us] silver nitrate is an example of which of the following types of reactions?

  • W. Metathesis [meh-TATH-uh-sis]
  • X. Decomposition
  • Y. Synthesis
  • Z. Redox
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High School Set 10 (2016) - Round 4 - Question 8

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BONUS: Chemistry Short Answer

Order the following three gases from slowest to fastest in terms of their rate of effusion at 25 degrees Celcius: 1) Helium; 2) Argon; 3) Neon.

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Middle School Set 15 (2021) - Round 6 - Question 9

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BONUS: PHYSICAL SCIENCE Short Answer

When making coffee, Rishi heats up 500 grams of water from 25 degrees Celsius to 90 degrees Celsius. In kilocalories, how much energy does this take?

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High School Set 10 (2016) - Round 10 - Question 10

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BONUS: Chemistry Multiple Choice

Consider the gas phase exothermic reaction of phosphorous trichloride [try-KLOOR-ide] with chlorine to yield phosphorous pentachloride. Under which of the following conditions is the equilibrium constant greater than one?

  • W. At low temperatures
  • X. At high temperatures
  • Y. At all temperatures
  • Z. It is never greater than one
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High School Set 6 (2012) - Round 15 - Question 18

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TOSS-UP: Earth and Space Short Answer

What is the name for the gravitational equilibrium [ee-kwuh-LIB-ree-uhm] points in the orbital plane of two bodies?

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High School Set 13 (2019) - Round 3 - Question 23

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TOSS-UP: Earth and Space Short Answer

Ishtar Terra is a surface province on what solar system object?

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Middle School Set 2 (2008) - Round 10 - Question 8

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TOSS-UP: GENERAL SCIENCE Multiple Choice

Which of the following temperatures in degrees Centigrade most likely corresponds to the hottest day on record anywhere in the USA:

  • W. 26 degrees C
  • X. 41 degrees C
  • Y. 57 degrees C
  • Z. 65 degrees C
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Middle School Set 10 (2016) - Round 3 - Question 5

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TOSS-UP: EARTH AND SPACE SCIENCE Short Answer

In what layer of Earth's atmosphere does nearly all weather occur?

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High School Set 8 (2014) - Round 8 - Question 6

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TOSS-UP: BIOLOGY Short Answer

The Bowman’s capsule and the glomerulus [gloh-MER-yuh-luhs] compose what part of the mammalian kidney?

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Middle School Set 1 (2009) - Round 6 - Question 2

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TOSS-UP: PHYSICAL SCIENCE Multiple Choice

Which of the following is the most common electronic device used for storing electric energy in a process commonly called charging:

  • W. capacitor
  • X. transformer
  • Y. rectifier
  • Z. semiconductor
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