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Chemistry
practice problem
beginner

Chemistry: Stoichiometry and Balancing Equations

Balance chemical equations and compute molar masses and reaction quantities.

Practice Questions

Q1.Balance the equation: _H₂ + _O₂ → _H₂O. What are the coefficients?

Q2.How many moles are in 44 grams of COâ‚‚? (Molar mass of C=12, O=16)

Q3.In the reaction 2H₂O → 2H₂ + O₂, if 4 moles of H₂O decompose, how many moles of O₂ are produced?

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