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Chemistry Questions - All Grades

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The Chemistry questions below are in the following grade levels: Pre-K
Grades: 1 2 3 4 5 6 7 8 9 10 11 12 College Graduate Continuing Education
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Grade 9 :: Periodic Table and Elements by swiftadam81
Grade 9 :: Atomic Structure by swiftadam81
Grade 9 :: Atomic Structure by swiftadam81
Which sub-atomic particle has a positive charge
  1. proton
  2. neutron
  3. electron
  4. nucleus
Grade 7 :: Molecules and Compounds by Saucesbi
Grade 10 :: Properties of Matter by aronyano
Grade 10 :: Properties of Matter by aronyano
Grade 1 :: Properties of Matter by ncm0505
Grade 10 :: Periodic Table and Elements by Jcoutchure
Which of these substances is not an element?
  1. water
  2. hyrdrogen
  3. aluminum
  4. iron
Grade 10 :: Quantum Physics and the Atom by Melloni
Select the correct electron configuration for silicon, atomic number 14.
  1. [math]1s^2 2s^2 2p^6 3s^2 3p^6 4s^2[/math]
  2. [math]1s^2 2s^2 2p^4 3s^2 3p^4[/math]
  3. [math]1s^2 2s^2 2p^6 3s^2 3p^2[/math]
Grade 4 :: Properties of Matter by Heidil123
Jose is oiling the wheels on his skateboard. He tries to wash the oil of his hands with only water, but nothing happens. What would happen if he added a few drops of dish soap?
  1. The oils would stick to his hands.
  2. The oil would change into a gas.
  3. The oil, water and soap would form a solution.
  4. The soap would help break up the oil into smaller drops.
Grade 4 :: Properties of Matter by varada
One day in July, Jaileen dropped her lip gloss in the driveway and it melted. Why did it melt?
  1. It was damaged
  2. It ran out of energy
  3. It absorbed too much heat
  4. It dissolved in the warm air
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