Look carefully at the symbol equation for the thermite reaction: Fe2O3 + Al → Fe + Al2O3The number of atoms of each element in the reactants is shown in the table. Use the symbol equation to identify the number of atoms of each element in the products.ElementNumber of atoms in reactantsNumber of atoms in productsIron (Fe)2Aluminium (Al)1Oxygen (O)3
Question
Look carefully at the symbol equation for the thermite reaction: Fe2O3 + Al → Fe + Al2O3The number of atoms of each element in the reactants is shown in the table. Use the symbol equation to identify the number of atoms of each element in the products.ElementNumber of atoms in reactantsNumber of atoms in productsIron (Fe)2Aluminium (Al)1Oxygen (O)3
Solution
The number of atoms of each element in the products can be determined by looking at the right side of the equation (the products side).
For Iron (Fe), there is no subscript number next to Fe in the products, which means there is 1 atom of Iron.
For Aluminium (Al), the subscript 2 in Al2O3 indicates there are 2 atoms of Aluminium.
For Oxygen (O), the subscript 3 in Al2O3 indicates there are 3 atoms of Oxygen.
So, the number of atoms of each element in the products is:
Iron (Fe): 1 Aluminium (Al): 2 Oxygen (O): 3
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