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4 cards from this section. Quick, good the night before a test.
Balance the equation: C3H8 + O2 -> CO2 + H2O.
Start by balancing carbon first, then hydrogen, followed by oxygen.
What is the mole ratio of H2 to H2O in the reaction 2 H2 + O2 -> 2 H2O?
Look at the coefficients of H2 and H2O in the balanced equation.
What does it mean to balance a chemical equation?
Think about why we need to count atoms.
Is the following statement true or false: The limiting reactant is the one that is in excess during a reaction.
Consider what happens when a reactant runs out.
Calculate the grams of CO2 produced when 10 grams of C3H8 are completely combusted. The balanced equation is C3H8 + 5 O2 -> 3 CO2 + 4 H2O.
Remember to use molar mass for conversions.
If 100 g of NaCl dissolves in water and reacts with silver nitrate (AgNO3) to form silver chloride (AgCl), what is the maximum mass of AgCl that can be produced?
Check your molar masses and remember the law of conservation of mass.
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