how to balance chemical equation with an example
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Explanation:
- Count the number of atoms of each element in the reactants and in the products. Reactants: C=6, H=12, O=8. ...
- Balance the equation. It is easier to start with carbon as it only appears once on each side. ...
- Change the coefficients again to try to balance the equation. ...
- Now we just need to balance the oxygen atoms.
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To balance a chemical equation, start by writing down the number of atoms in each element, which is listed in the subscript next to each atom. ★ Then, add coefficients to the atoms on each side of the equation to balance them with the same atoms on the other side.
★Fe2O3 + C --> Fe + CO2 (Unbalanced)
=> To balance them, we put a coefficient of 2 in front of H2O.
=> The hydrogen (H) atoms are now balanced. Due to the coefficient 2 in front of H2O, there are a total of 4 oxygen (O) atoms on the products side.
=> To balance the oxygen atoms on both sides, we put a coefficient of 2 in front of O2.
★ 2Fe2O3 + 3C --> 4Fe + 3CO2
()
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