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Tenth Grade (Grade 10) Bonds and Mixing Questions

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Grade 10 Bonds and Mixing
When Cu (III) forms an ion, what charge does it have?
  1. +1
  2. 0
  3. -3
  4. +3
Grade 10 Bonds and Mixing
N2 is an example of a compound with a triple bond.
  1. True
  2. False
Grade 10 Bonds and Mixing
What happens as an atom of hydrogen and an atom of chlorine combine to become hydrogen chloride?
  1. A bond is formed as energy is absorbed.
  2. A bond is formed as energy is released.
  3. A bond is broken as energy is absorbed.
  4. A bond is broken as energy is released.
Grade 10 Bonds and Mixing
Which of the following intermolecular forces is the main type of intermolecular forces in a nonpolar molecule?
  1. dipole-dipole forces
  2. hydrogen bonding
  3. London Dispersion forces
  4. None of the above
Grade 10 Bonds and Mixing
Which of the following best describes chicken noodle soup?
  1. Element
  2. Mixture
  3. Compound
  4. Solution
Grade 10 Bonds and Mixing
How are bonds formed?
  1. By the attraction between the electrons of two atoms.
  2. By the attraction between the nuclei of two atoms.
  3. By the attraction between the nucleus of an atom and the electrons of another atom.
  4. By the attraction between the electrons of one atom and the neutrons of another atom.
Grade 10 Bonds and Mixing
In a group of water molecules, hydrogen bonds form between
  1. the hydrogen atoms in a single water molecule.
  2. the oxygen atom in one water molecule and a hydrogen atom in another water molecule.
  3. two hydrogen atoms in different water molecules.
  4. the oxygen atoms in different water molecules.
Grade 10 Bonds and Mixing
Which statement correctly describes a solution formed when sodium chloride is dissolved in water?
  1. Sodium chloride is the solvent and water is the solute.
  2. Sodium chloride is the solution and water is the solvent.
  3. Sodium chloride is the solute and water is the solvent.
  4. Sodium chloride is the solvent and water is the solution.
Grade 10 Bonds and Mixing
What accounts for the attractions in a chemical bond?
  1. The fact that the nucleus is neutral, while the electrons are negative
  2. The fact that the nucleus is negative, while the electrons are positive
  3. The fact that the nucleus is neutral, while the electrons are positive
  4. The fact that there are protons in the nucleus, while the electrons surrounding the nucleus are negative
Grade 10 Bonds and Mixing
When oxygen forms an ion, what charge does it have?
  1. -1
  2. -2
  3. +1
  4. +2
Grade 10 Bonds and Mixing
To separate two or more liquids, you would use
  1. distillation.
  2. chromatography.
  3. centrifugation.
  4. filtration.
Grade 10 Bonds and Mixing
What is a property of most metals?
  1. They tend to gain electrons easily when bonding.
  2. They tend to lose electrons easily when bonding.
  3. They are poor conductors of heat.
  4. They are poor conductors of electricity.
Grade 10 Bonds and Mixing
Which of the following phase changes is exothermic?
  1. condensation
  2. evaporation
  3. melting
  4. sublimation
Grade 10 Bonds and Mixing
Is the following mixture heterogeneous or homogeneous: pencil shavings?
  1. homogeneous
  2. heterogeneous
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