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Chemical Reactions Introduction. LT 5C:Describe how the Law of Conservation of mass determines what reactants and products will be in a reaction. Identify the reactants and the products of a chemical reaction.
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Chemical Reactions Introduction LT 5C:Describe how the Law of Conservation of mass determines what reactants and products will be in a reaction. Identify the reactants and the products of a chemical reaction. Determine how many atoms are reacting or being produced, given the formula of a compound using subscripts and coefficients Balance a chemical equation given the reactants and products of a reaction Justify how chemical reactions obey the Law of Conservation of Mass Vocabulary: Chemical Reaction Reactants Products Chemical Equation Law of Conservation of Mass Subscript Coefficient
Chemical Equation • Definition: • Pieces: • Reactants: • Products: • Example:
Making Salt • Find 1 Na and 1 Cl • Also find the + and • Rearrange until you have NaCl. • Reactants: _____ + _____ • Products: __________ • Chemical Equation: _____________________ • Draw the Equation here:
Carbon Dioxide! • Find 1 C and 2 O. • Reactants: C + O2 • Products: CO2 • Reaction Equation: ______________________ • Draw the reaction here:
Making Water • Find 4 H and 2 O • Reactants: H2 and O2 • Products: H2O • Chemical Equation: _____________________ • Draw the reaction here:
Subscripts and Coefficients • Subscript: • Coefficient: • Water example:
Law of Conservation of Mass • Definition: • Implication:
Potassium Chloride • Products: K + Cl2 • Reactants: KCl • Chemical Equation: _____________________ • Draw the equation here:
With two products… • Reactants: Mg + TiCl4 • Products: Ti + MgCl2 • Chemical Equation: _____________________ • Draw the equation here:
More Practice…1 • Reactants: HgO • Products: Hg + O2 • Chemical Equation: _____________________ • Draw the equation here:
More practice….2 • Reactants: KClO3 • Products: KCl + O2 • Chemical Equation: _____________________ • Draw the equation here:
More practice…3 • Reactants: CH4 + O2 • Products: CO2 + H2O • Chemical Equation: _____________________ • Draw the equation here: