Mg2 +O2=2MgO
How to balance a chemical equation?
- Count each type of atom in reactants and products.
- Place coefficients, as needed, in front of the symbols or formulas to increase the number of atoms or molecules of the substances.
- Repeat steps 1 and 2 until the equation is balanced.
conclusion
- To be useful, chemical equations must always be balanced. Balanced chemical equations have the same number and type of each atom on both sides of the equation.
- The coefficients in a balanced equation must be the simplest whole number ratio. Mass is always conserved in chemical reactions.
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