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How to Balance:

Word equation: Hydrogen sulfide + Sulfur dioxide → Water + Sulfur

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

Balancing Strategies: To balance this equation it is best to leave the S atom until last. This is because it is a single element and we can easily change it's coefficient without changing any other compounds in the chemical equation.

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).
Never change the subscripts (the small numbers after elements).