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Bonds and Mixing Questions - All Grades

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Grade 8 Bonds and Mixing
Compare and contrast mixtures and compounds. Which statement is true about mixtures and compounds?
  1. Mixtures and compounds are the same throughout.
  2. Mixtures and compounds are made of two or more elements in a definite proportion.
  3. Mixtures must be separated by chemical methods and compounds by physical methods.
  4. Mixtures contain two or more elements physically combined and compounds contain two or more elements chemically combined.
Grade 8 Bonds and Mixing
[math]MgF_2[/math] is an example of a(n)
  1. Ionic bond
  2. Metallic bond
  3. Covalent bond
  4. Noble bond
Grade 8 Bonds and Mixing
Grade 10 Bonds and Mixing
Covalent bonds result from:
  1. The sharing of equal numbers of electrons by two atoms
  2. The exchange of equal numbers of electrons by two atoms
  3. The combination of two atoms of the same valence
  4. Sharing of unequal numbers of electrons by two atoms
Grade 11 Bonds and Mixing
What are valence electrons?
  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 10 Bonds and Mixing
In ionic bonds,
  1. Electrons are shared unequally between atoms
  2. Electrons are shared equally between atoms
  3. Neutrons are transferred between atoms
  4. Electrons are transferred between atoms
Grade 11 Bonds and Mixing
What is a covalent bond?
  1. electrons are shared
  2. electrons are given up or taken
  3. electrons have nothing to do with these bonds
Grade 10 Bonds and Mixing
The strongest and most stable chemical bonds are
  1. Covalent bonds
  2. Ionic bonds
  3. Hydrogen bonds
  4. They are all of equal strength
Grade 5 Bonds and Mixing
Kool-aid, hot chocolate, and ocean water are all examples of what?
  1. mixtures
  2. solutions
  3. beverages
  4. salty liquids
Grade 10 Bonds and Mixing
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 9 Bonds and Mixing
Grade 11 Bonds and Mixing
Grade 10 Bonds and Mixing
Grade 10 Bonds and Mixing
A covalent bond is formed by the                      .
  1. losing of electrons
  2. transfer of electrons
  3. sharing electrons
  4. gaining electrons
Grade 9 Bonds and Mixing
Leandra was dissolving ammonia gas in water. In this example, the ammonia gas is
  1. the solute
  2. the solvent
  3. the precipitate
  4. the solution
  5. the element
Grade 6 Bonds and Mixing
In a(n)                 atoms share electrons.
  1. salt bond
  2. ionic bond
  3. element bond
  4. covalent bond
Grade 8 Bonds and Mixing
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