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To learn to identify the characteristics of a chemical reaction To learn the information given by a chemical equation

Objectives. To learn to identify the characteristics of a chemical reaction To learn the information given by a chemical equation . Chemical reactions involve a rearrangement of the ways atoms are grouped together. . A chemical equation represents a chemical reaction.

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To learn to identify the characteristics of a chemical reaction To learn the information given by a chemical equation

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  1. Objectives • To learn to identify the characteristics of a chemical reaction • To learn the information given by a chemical equation

  2. Chemical reactions involve a rearrangement of the ways atoms are grouped together. • A chemical equation represents a chemical reaction. • Reactants are shown to the left of an arrow. • Products are shown to the right of the arrow.

  3. In a chemical reaction atoms are not created or destroyed. • All atoms present in the reactants must be accounted for in the products. • Same number of each type atom on both sides of arrow

  4. Balancing a Chemical Equation • Unbalanced equation • Balancing the equation • The balanced equation CH4 + 2O2 CO2 + 2H2O

  5. Physical states of compounds are often given in a chemical equation.

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