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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
To draw Lewis diagrams, you need to do draw                                          .
  1. The chemical symbol and core electrons
  2. The chemical symbol only
  3. The chemical symbol and valence electrons
  4. The chemical symbol and all electrons
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
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 CCl4.
  1. covalent bonding
  2. ionic bonding
  3. metallic bonding
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
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 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
  4. None of the above
Grade 11 Bonds and Mixing
Which type of bond involves the sharing of electrons between atoms?
  1. Covalent
  2. Ionic
  3. Metallic
Grade 11 Bonds and Mixing
Given the following bonds: Si-Cl, P-Cl, Mg-Cl, and S-Cl, which of the following correctly ranks the bonds from least polar to most polar?
  1. S-Cl, P-Cl, Mg-Cl, Si-Cl
  2. Mg-Cl, Si-Cl, P-Cl, S-Cl
  3. Mg-Cl, S-Cl, P-Cl, Si-Cl
  4. S-Cl, P-Cl, Si-Cl, Mg-Cl
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
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
What is the main type of bonding present in a sample of zinc?
  1. covalent bonding
  2. ionic bonding
  3. metallic bonding
  4. none of the above
Grade 11 Bonds and Mixing
The strength of a bond depends upon                                           .
  1. free rotation about a bond
  2. extent of overlapping between the radicals
  3. resonance in the molecule
  4. whether the overlap is axial or sidewise
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
The combining power of an atom based upon the number of electrons it can either take on or give up.
  1. Atomic number
  2. van der waals number
  3. Mass number
  4. Valence
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