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How to Balance Zinc chloride + Hydrogen gas → Zinc + Hydrochloric acid |
How to Balance: Zn + HCl → ZnCl2 + H2
Type of Chemical Reaction: This is a combination reaction.
Word Equation: Zinc chloride + Hydrogen gas → Zinc + Hydrochloric acid
| 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.
For a complete explanation, watch:
About Balancing Chemical EquationsWhen 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).
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