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Balancing the Chemical equation:
- When we balance chemical equations, we want the same number of each sort of atom on both sides of the equation.
- Only the coefficients are changed. The numbers in front of the molecule are called coefficients.
- Subscripts should never be changed.
- Metals must be balanced first, followed by nonmetals such as oxygen and hydrogen (hydrogen is not involved in this scenario).
- The unbalanced chemical reaction provided is
- It is a single displacement redox process in which Aluminium () and Iron () swap places.
- As there are two Aluminium atoms on the right side, we must put a before the Aluminium on the left side.
- Second, the Iron must be balanced. As shown on the left, there are two Iron atoms in , thus a must be inserted on the right side vĩ đại balance them.
- Finally, the oxygens must be balanced, but in this case, they are already at on each side, therefore the equation is now balanced.
- Thus, the balanced chemical reaction is:
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