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Tenth Grade (Grade 10) Chemistry Questions

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Grade 10 Macromolecules
Grade 10 Bonds and Mixing
What type of ion forms when an atom loses electrons?
  1. A positive anion
  2. A negative anion
  3. A positive cation
  4. A negative cation
Grade 10 Properties of Matter
Grade 10 Matter
The partial pressure of a gas in a mixture of gases placed in a vessel is                                                                                           .
  1. the ratio of the pressure exerted by this gas to the total pressure exerted by the mixture
  2. the total pressure diminished by the pressure of this gas
  3. the pressure a gas would exert if it were alone in the vessel.
  4. the negative pressure exerted by the gas in the mixture
Grade 10 Properties of Matter
Rusting is a                 change.
  1. physical
  2. static
  3. chemical
  4. thermal
Grade 10 Bonds and Mixing
What type of bond holds one H2O (water) molecule together, giving it opposing charges?
  1. Ionic Bond
  2. Polar Covalent
  3. Nonpolar Covalent Bond
  4. Hydrogen Bond
Grade 10 Reactions
Grade 10 Reactions
In what type of reaction does one reactant form two or more products?
  1. single replacement
  2. decomposition
  3. synthesis
  4. double replacement
Grade 10 Periodic Table and Elements
Which statement about nitrogen and phosphorus is not correct?
  1. Both are in the same group of the Periodic Table.
  2. Both are in the same period of the Periodic Table.
  3. Both are non-metals.
  4. Both have the same number of electrons in their outer shell.
Grade 10 Periodic Table and Elements
Elements in Group 18 on the periodic table are known as                      .
  1. Alkaline earth metals
  2. the Noble Gases
  3. metalloids
  4. transition elements
Grade 10 Macromolecules
Grade 10 Atomic Structure
If you add an additional neutron to an atom, what do you create?
  1. a new element
  2. an isotope
  3. a reaction
  4. an ion
Grade 10 Molecules and Compounds
Which is the correct formula for aluminum oxide?
  1. [math]Al_2O[/math]
  2. [math]AlO_3[/math]
  3. [math]Al_3O_2[/math]
  4. [math]Al_2O_3[/math]
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