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Eleventh Grade (Grade 11) Molecules and Compounds Questions

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Grade 11 Molecules and Compounds
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 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 makes hydrogen bonding between water molecules, ammonia molecules, or molecule of hydrogen fluoride so strong?
  1. There is an attraction between a small, weakly electronegative hydrogen atom and a large, strongly electronegative atom of fluorine, nitrogen, or oxygen.
  2. There is an attraction between a small, highly electronegative hydrogen atom and a large, highly electronegative fluorine atom.
  3. There is an attraction between the hydrogen and oxygen atoms, only.
  4. There is an attraction between the hydrogen and nitrogen atoms, only.
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
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
What is the correct nomenclature for the following compound?
[math]ClO_2[/math]
  1. Chlorine Oxide
  2. Chlorine Trioxide
  3. Chlorine Dioxide
  4. Dichlorine Oxide
Grade 11 Molecules and Compounds
When does a molecule tend to form?
  1. When 2 elements are combined
  2. When 2 or more atoms bond covalently
  3. When atoms disappear
Grade 11 Molecules and Compounds
What is the naming of chemical compounds known as?
  1. Hydrocarbons
  2. Molecular Compounds
  3. Diatomic Elements
  4. Chemical Nomenclature
Grade 11 Molecules and Compounds
Grade 11 Molecules and Compounds
Propane is a gas at STP, while bromine is a liquid at STP. Which statement correctly explains these observations?
  1. Bromine has weaker intermolecular forces than propane does.
  2. Bromine has greater molecular polarity than propane does.
  3. Bromine has weaker molecular polarity than propane does.
  4. Bromine has stronger intermolecular forces than propane does.
Grade 11 Molecules and Compounds
Grade 11 Molecules and Compounds
What is a compound composed of carbon and hydrogen called?
  1. Diatomic Element
  2. -ide
  3. Hydrocarbon
  4. Chemical Nomenclature
Grade 11 Molecules and Compounds
Which of the following statements correctly compares the behavior of a mixture of ethanol and water at STP?
  1. Water will evaporate first, because it has weaker intermolecular forces.
  2. Ethanol will evaporate first, because it has weaker intermolecular forces.
  3. Ethanol and water will evaporate simultaneously.
  4. The aqueous solution will evaporate partially at a temperature between the boiling points of water and of ethanol.
Grade 11 Molecules and Compounds
Grade 11 Molecules and Compounds
The VSEPR model is important because it can be used to
  1. find molecular shape.
  2. find ion charge.
  3. draw correct resonance structures.
  4. measure intermolecular distances.
Grade 11 Molecules and Compounds
A fluorine molecule is formed by
  1. p-p orbitals (sidewise overlap).
  2. p-p orbitals (end to end overlap).
  3. sp-sp orbitals overlaps.
  4. s-s orbitals overlaps.
Grade 11 Molecules and Compounds
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