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Chemistry Questions - All Grades

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The Chemistry questions below are in the following grade levels:
Grades: 1 2 3 4 5 6 7 8 9 10 11 12 College Graduate Continuing Education
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Grade 3 :: Phases of Matter by misslahl
Which is these is NOT a state of matter?
  1. liquid
  2. gas
  3. smoke
  4. solid
Grade 7 :: Phases of Matter by cdellafave
At what temperature does water freeze in degrees Celsius?
  1. 10
  2. 100
  3. 32
  4. 0
Grade 7 :: Acids and Bases by Stodola
A household cleaner has a pH around 10. It would be considered a:
  1. base
  2. acid
  3. neutral
  4. liquid
Grade 5 :: Atomic Structure by SGC315
Positively charged particles:
  1. Protons
  2. Neutrons
  3. Electrons
  4. Electrolytes
Grade 3 :: Properties of Matter by Tlahooti
Properties are
  1. any characteristics of matter that you can observe
  2. the steps of the scientific process
  3. when you make predictions
Grade 7 :: Acids and Bases by polinakapona
Strong acids have a pH scale of
  1. 0 - 7
  2. 6 - 8
  3. 11 - 15
  4. 0 - 4
Grade 9 :: Molecules and Compounds by LBeth
[math]NH_4^+[/math]
  1. cyanide
  2. hydroxide
  3. hydronium
  4. ammonium
Grade 10 :: Atomic Structure by Qalam
In a famous experiment conducted by Ernest Rutherford, positively charged alpha particles were scattered by a thin gold foil. Which of the following is a conclusion that resulted from this experiment?
  1. The nucleus is negatively charged.
  2. The atom is a dense solid and is indivisible.
  3. The mass is conserved when atoms react chemically.
  4. The nucleus is very small and the atom is mostly empty space
Grade 2 :: Properties of Matter by rockme6
What is the amount of space and object takes up called?
  1. volume
  2. mass
  3. freeze
  4. melt
Grade 6 :: Acids and Bases by SGC315
A substance that changes color when exposed to acid or base solutions is called
  1. salt
  2. indicator
  3. molecule
  4. ion
Grade 9 :: Molecules and Compounds by LBeth
[math]O_2^(2-[/math]
  1. oxalate
  2. peroxide
  3. hydroxide
  4. hydronium
Grade 7 :: Acids and Bases by RebeccaK
Acids have a pH of less than 7?
  1. True
  2. False
Grade 6 :: Phases of Matter by yousef12345
Their molecules are tightly packed together.
  1. Solids
  2. Liquids
  3. Gases
Grade 6 :: Properties of Matter by trigg
Hardness, shape, color, texture, and size are all                of matter.
  1. properties
  2. areas
  3. liquids
  4. gases
Grade 5 :: Phases of Matter by dmholland
This state of matter has no definite shape or volume.
  1. plasma
  2. gas
  3. liquid
  4. solid
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