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Seventh Grade (Grade 7) Bonds and Mixing Questions

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Grade 7 Bonds and Mixing
A teaspoon of sugar stirred into a glass of water would be considered which type of mixture?
  1. heterogeneous
  2. homogeneous
  3. compound
  4. element
Grade 7 Bonds and Mixing
Which of the following atoms do not usually form bonds?
  1. Calcium
  2. Neon
  3. Hydrogen
  4. Oxygen
Grade 7 Bonds and Mixing
Covalent bonding occurs between two nonmetals.
  1. True
  2. False
Grade 7 Bonds and Mixing
Which of the following is a solution?
  1. salt water
  2. chlorine
  3. milk
  4. muddy water
Grade 7 Bonds and Mixing
Which types of atoms usually become negative ions?
  1. metals
  2. nonmetals
  3. noble gases
  4. all of the above
Grade 7 Bonds and Mixing
Between which of the following atoms is a covalent bond most likely to occur?
  1. calcium and lithium
  2. sodium and fluorine
  3. nitrogen and oxygen
  4. helium and argon
Grade 7 Bonds and Mixing
What is CHROMATOGRAPHY?
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