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Eleventh Grade (Grade 11) Bonds and Mixing Questions

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Grade 11 Bonds and Mixing
In chemistry, we describe a mixture as
  1. a combination of pure substances formed through chemical bonding.
  2. any substance possessing a uniform composition throughout.
  3. a physical combination of two or more types of substances,with each maintaining its own characteristic properties.
  4. any collection of elements chemically bound to each other.
Grade 11 Bonds and Mixing
What is the main type of bonding found in CsI?
  1. covalent bonding
  2. ionic bonding
  3. metallic bonding
  4. coordinate covalent bonding
Grade 11 Bonds and Mixing
Predict the predominant type of bonding of [math]"CCl"_4[/math].
  1. covalent bonding
  2. ionic bonding
  3. metallic bonding
Grade 11 Bonds and Mixing
Valence electrons are best described in chemistry as
  1. positive electrons in the atom.
  2. all of the electrons in the atom.
  3. the outer shell electrons in the atom.
  4. the number of electrons the atom needs to be stable.
Grade 11 Bonds and Mixing
A covalent bond typically forms between what kind of elements?
  1. two metals
  2. two nonmetals
  3. a nonmetal and a metal
  4. a nonmetal and a metalloid
Grade 11 Bonds and Mixing
Homogeneous mixtures are also referred to as
  1. gases.
  2. substances.
  3. solutions.
  4. liquids.
Grade 11 Bonds and Mixing
What does a line in a Lewis structure represent?
  1. one electron
  2. two electrons
  3. four electrons
  4. unpaired electrons
Grade 11 Bonds and Mixing
Which of the following choices states the two main types of bonds?
  1. Ionic, Adhesive
  2. Covalent, Adhesive
  3. Covalent, Ionic
Grade 11 Bonds and Mixing
Grade 11 Bonds and Mixing
Which statement best describes the nature of a covalent bond?
  1. Electrons are shared between atoms.
  2. Electrons are given up or taken from or by atoms.
  3. Electrons have nothing to do with these bonds.
Grade 11 Bonds and Mixing
A mixture that does not have a uniform composition throughout is a
  1. homogeneous mixture.
  2. heterogeneous mixture.
  3. solution.
  4. gas.
Grade 11 Bonds and Mixing
What is the main type of bonding present in a sample of zinc?
  1. covalent bonding
  2. ionic bonding
  3. metallic bonding
Grade 11 Bonds and Mixing
Which of the following statements is correct about hydrogen bonding?
  1. Hydrogen bonding is a type of covalent bond.
  2. Hydrogen bonding occurs between water molecules.
  3. Hydrogen bonding connects phosphates to carbons within DNA.
  4. Hydrogen bonding is responsible for waters low heat of vaporization.
Grade 11 Bonds and Mixing
Predict the predominant type of bonding of silver (Ag) and mercury (Hg).
  1. covalent bonding
  2. ionic bonding
  3. metallic bonding
Grade 11 Bonds and Mixing
A mixture with uniform composition throughout is a
  1. heterogeneous mixture.
  2. homogeneous mixture.
  3. solid.
  4. mass.
Grade 11 Bonds and Mixing
Which of the following correctly defines a covalent bond?
  1. A molecule that contains two atoms.
  2. A bond that forms by the sharing of electrons between atoms.
  3. A bond made of different molecules.
  4. A neutral group of atoms joined together.
Grade 11 Bonds and Mixing
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