Balancing Equation Worksheet

Balancing Equation Worksheet - Balancing Chemical Equations...

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Balancing Chemical Equations I. Chemical Equations A. Reactants written on left B. Products written on right C. Conditions are written over/under the arrow D. Atoms and masses are conserved in chem. rxn 1. meaning you must have equal masses on each side of the equation 2. # of products must = the # of reactant E. Coefficients indicate the number of moles of reactants and products. 1. Coefficients can only be written in the front of a compound Good Example: 2H 2 + O 2 2H 2 O Bad Example: 2HCl + Mg H 2 + Mg2Cl F. You can not change the subscript only the coefficient G. Coefficient typically is a whole number H. Put coefficients in the front of a compound not in the middle II. Balancing an Equation A. Convert word equation to the text format B. Write the correct compounds (balanced charges) Sodium carbonate reacts with hydrogen chloride to produce sodium chloride and carbon dioxide Na 2 CO 3 + HCl NaCl + CO 2 + H 2 O C. Count the number of atoms on each side of the equation (tally) Reactants Products Na 2 Na 1 C 1 C
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Balancing Equation Worksheet - Balancing Chemical Equations...

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