Chemistry

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Author:
Jnguyen436
ID:
109200
Filename:
Chemistry
Updated:
2011-10-15 23:27:33
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Amounts Chemical Reactions Gases
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Description:
Unit 4
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  1. Avogadro's number
    6.022X10e23 particles of matter contained in l mole of a substance.
  2. Molar Mass
    the mass in grams of 1 mole of a substance.
  3. Law of conversion of mass
    matter is neither gained nor lost in the process of a chemical reaction.
  4. Theoretical yield
    the maximum amount of product that can be produced from a given amount of reactants.
  5. Percent Yield
    The ratio of the actual and theoritical yields of a chemial reaction multiplied by 100%
  6. Pressure
    a force per unit area
  7. Partial Pressure
    the pressure exerted by one component of a gas mixture.
  8. Five Factors involved in the construction of a chemical equation.
    • 1. The chemical formulas of the reactants are the reactants are written on the left and those of the products are written on the right.
    • 2. A reaction arrow indicating the direction in which the reaction proceeds separates the reactants from the product.
    • 3. The physical states of reactants and products are often but not always shown in the parenthesis just after the formula of each.
    • 4. The symbol A over the reaction arrow means that energy is neccessary for the reaction to occur.
    • 5. The equation will be balanced.
  9. Precipitation
    result in the formation of one or more insoluble products.
  10. Acid-Base reactions
    Involve the transfer of a hydrogen ion, H+, from reactant ( the acid) to the other ( the base). a subtype of double replacement reactions.
  11. Oxidation-reduction
    transfer of one or more electrons from one reactant to another.

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