Balancing S + O2 → SO3

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How to Balance:

S + O2 → SO3

Word equation: Sulfur + Oxygen gas → Sulfur trioxide

Type of Chemical Reaction: For this reaction we have a combination reaction.

Balancing Strategies: In this combination reaction be you'll need to change the coefficient on the SO3 in order to get an even number of oxygen atoms. This will make balancing the equation much easier.






Essential Resources

For a complete explanation, watch:

When balancing chemical equations our goal is to have the same number of each type of atom on both sides of the equation.

Only change the coefficients (these are the numbers in front substances).
Coefficients are the numbers in front of the molecule.
Never change the subscripts (the small numbers after elements).
Coefficients are the numbers in front of the molecule.

Video:




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