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Eleventh Grade (Grade 11) Bonds and Mixing Questions

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Grade 11 Bonds and Mixing
A substance that contains two or more substances combined chemically is called
  1. a compound.
  2. an element.
  3. a period.
  4. a group.
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
The prefix "intra-" in "intramolecular forces" means that attractive forces are
  1. within molecules.
  2. between molecules.
  3. outside of molecules.
  4. around molecules.
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
Physically blending two or more parts will form
  1. a mixture.
  2. a phase.
  3. a physical property.
  4. a mess.
Grade 11 Bonds and Mixing
Which of the following forms of matter can be classified as being heterogeneous?
  1. suspensions
  2. solutions
  3. compounds
  4. elements
Grade 11 Bonds and Mixing
Which molecule involves an electrovalent bond?
  1. H2
  2. CH4
  3. CaCl2
  4. HCl
Grade 11 Bonds and Mixing
Which of the following has the smallest bond length?
  1. O2
  2. N2
  3. Cl2
  4. HCl
Grade 11 Bonds and Mixing
Which bonds are involved in the formation of molecules?
  1. Ionic Bonds
  2. Nonpolar Covalent Bonds
  3. Polar Covalent Bonds
  4. Metallic Bonds
  5. Both (b) and (c)
  6. Both (b) and (d)
Grade 11 Bonds and Mixing
Matter with a uniform and definite composition is called
  1. a sample.
  2. a vapor.
  3. a substance.
  4. a baseball player.
Grade 11 Bonds and Mixing
Hybrid orbitals give stronger covalent bonds due to
  1. their orientation.
  2. larger extent of overlap.
  3. their similar shapes.
  4. the presence of unpaired electrons.
Grade 11 Bonds and Mixing
Which of the following correctly describes the relationship between bond strength and length?
  1. The shorter the bond, the stronger it is.
  2. The shorter the bond, the weaker it is.
  3. The longer the bond, the weaker it is.
  4. The longer the bond, the stronger it is.
Grade 11 Bonds and Mixing
Which of the following correctly describes a coordinate covalent bond?
  1. When one atom provides all of its electrons for sharing with another atom.
  2. When one atom provides only one electron to be shared with another atom.
  3. When one atom provides three of the electrons to be shared between two atoms.
  4. None of these are correct.
Grade 11 Bonds and Mixing
A bond formed when atoms share one or more pairs of electrons is called a(n)                .
  1. metallic bond
  2. ionic bond
  3. polar bond
  4. covalent bond
Grade 11 Bonds and Mixing
A mixture of metals where small atoms take up space in the "holes" of a metal structure that is tightly packed is known as a(n)
  1. substitutional alloy.
  2. interstitial alloy.
  3. regular alloy.
  4. none of the above
Grade 11 Bonds and Mixing
A mixture of metals where certain metal atoms are replaced by atoms of a similar size is known as a(n)
  1. substitutional alloy.
  2. interstitial alloy.
  3. regular alloy.
  4. none of the above.
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