Balancing Zn + HCl → ZnCl2 + H2

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How to Balance:

Zn + HCl → ZnCl2 + H2

Word equation: Zinc chloride + Hydrogen gas → Zinc + Hydrochloric acid

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

Balancing Strategies: When we add zinc to hydrochloric acid we end up with zinc chloride, a salt, and hydrogen gas. This reaction is actually a good way to make hydrogen gas in the lab. When you are balancing the equation, you may want to start by looking at how you could change the HCl and on the reactants side of the equation. This is a good place to start.

Essential Resources

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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.