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Ninth Grade (Grade 9) Bonds and Mixing Questions

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Grade 9 Bonds and Mixing
What is a combination of sand and salt that can be separated rather easily called?
  1. a substance
  2. a mass
  3. a mixture
  4. a property
Grade 9 Bonds and Mixing
A solution of two or more metals such as brass is
  1. an alloy.
  2. a heterogeneous mixture.
  3. matter.
  4. a mixture.
Grade 9 Bonds and Mixing
A shared pair of electrons is called                .
  1. a covalent bond
  2. an ionic bond
  3. an energy level
  4. a compound
Grade 9 Bonds and Mixing
What are homogeneous mixtures?
  1. elements
  2. solutions
  3. properties
  4. substances
Grade 9 Bonds and Mixing
Chemical bonds are likely to form when
  1. two atoms have the same number of electrons.
  2. an atom's outer energy level doesn't have the maximum number of electrons.
  3. an atom's nucleus has the same number of protons as neutrons.
  4. an atom's outer energy level is filled.
Grade 9 Bonds and Mixing
A covalent bond is formed as the result of                         .
  1. transferring electrons
  2. sharing an electron pair
  3. transferring protons
  4. sharing a proton pair
Grade 9 Bonds and Mixing

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

A compound composed of electrically charged atoms is called a(n)                   compound.
  1. octet
  2. chemically stable
  3. ionic
  4. covalent
Grade 9 Bonds and Mixing
Which of the following terms describes a substance that dissolves in a solvent?
  1. Concentration
  2. Solution
  3. Solute
  4. Solvent
  5. mixture
Grade 9 Bonds and Mixing
                is the substance in a solution that dissolves.
  1. Solution
  2. Solvent
  3. Solute
  4. Compound
  5. Mixture
Grade 9 Bonds and Mixing
Which of these methods can be used to recover a substance that has dissolved in water?
  1. flotation
  2. decomposition
  3. evaporation
Grade 9 Bonds and Mixing
What type of compound is formed when two ions form an ionic bond?
  1. crystal
  2. interparticle force
  3. ionic compound
  4. covalent bond
Grade 9 Bonds and Mixing
Which of the following is involved in the formation of a bond?
  1. inner-level electrons
  2. neutrons
  3. only sublevel electrons
  4. valence electrons
Grade 9 Bonds and Mixing
                electrons are used in chemical bonding.
  1. Valence
  2. Octet
  3. 2
  4. Orbital
Grade 9 Bonds and Mixing
A mixture of two or more uniformly dispersed substances.
  1. Solution
  2. Colloid
  3. suspension
  4. Solvent
  5. Solute
Grade 9 Bonds and Mixing
Atoms that share electrons form what type of bond?
  1. covalent bond
  2. formula
  3. interparticle force
  4. ion
Grade 9 Bonds and Mixing
How many types of bonding are there?
  1. 15
  2. 3
  3. 6
  4. 4
Grade 9 Bonds and Mixing
The forces of attraction are strongest between
  1. molecules of covalent compounds.
  2. ions of opposite electric charge in ionic compounds.
Grade 9 Bonds and Mixing
In which of the following can you easily see the individual parts?
  1. homogeneous compound
  2. homogeneous mixture
  3. heterogeneous mixture
  4. heterogeneous compound
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