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Molecules and Compounds Questions - All Grades

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Grade 10 Molecules and Compounds
What is the correct name for the compound [math]MgO[/math]?
  1. magnesium trioxide
  2. dimagnesium trioxide
  3. magnesium oxide
  4. magnesium oxygen
Grade 11 Molecules and Compounds
Grade 11 Molecules and Compounds

This question is a part of a group with common instructions. View group »

In chemistry, we describe a compound as
  1. a pure substance that cannot be broken down into simpler, stabler substances.
  2. a substance that is made up of two or more atoms that are chemically bonded that can be broken down into simpler, stabler substances.
  3. the smallest unit of matter that keeps its characteristic chemical identity.
  4. any substance of any kind, whether it is bonded or not.
Grade 11 Molecules and Compounds
What are two or more charged atoms held together by covalent bonds called?
  1. Polyatomic Ions
  2. Molecular Compounds
  3. Binary Compounds
  4. Covalent Bonds
Grade 10 Molecules and Compounds
Water is a polar molecule. This means that
  1. the opposite ends of the molecule have opposite electrical charges.
  2. water molecules are linear, like a pole.
  3. water is one of the many hydrophobic molecules.
  4. the atoms in water have equal electronegativities.
Grade 10 Molecules and Compounds
Grade 10 Molecules and Compounds
What is the chemical formula for dinitrogen heptafluoride?
  1. [math]N_7F_2[/math]
  2. [math]N_2F_7[/math]
  3. [math]NF_12[/math]
  4. [math]N_2F_9[/math]
Grade 10 Molecules and Compounds
What is the formula for carbon tetrafluoride?
  1. [math]C_4F_4[/math]
  2. [math]CF_4[/math]
  3. [math]CF[/math]
  4. [math]C_4F[/math]
Grade 10 Molecules and Compounds

This question is a part of a group with common instructions. View group »

Grade 10 Molecules and Compounds
What is the correct name for the following compound: [math]SO_3[/math]?
  1. monosulfur oxide
  2. monosulfur trioxide
  3. sulfur trioxide
  4. sulfoxide
Grade 11 Molecules and Compounds

This question is a part of a group with common instructions. View group »

What kinds of elements are found in an ionic compound?
  1. Two metals
  2. Three nonmetals
  3. Three metals and three nonmetals
  4. One metal and one nonmetal
Grade 11 Molecules and Compounds

This question is a part of a group with common instructions. View group »

What are chemical compounds consisting of only two elements called?
  1. Molecular Compounds
  2. Binary Compounds
  3. Chemical Nomenclature
  4. Polyatomic Ions
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