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2 cards from this section. Quick, good the night before a test.
Write the balanced equation for the combustion of ethane (C₂H₆).
Remember to consider both sides must have equal numbers of carbon, hydrogen, and oxygen.
How many moles of CO₂ are produced from 5 moles of C₃H₈?
Use the mole ratio from the balanced equation.
What does a balanced chemical equation represent?
Think about what happens to atoms in a chemical reaction.
True or False: The coefficients in a balanced equation tell us the number of moles of reactants and products.
Consider the role of coefficients in a balanced reaction.
If 5.00 g of aluminum reacts with excess chlorine gas to form aluminum chloride (AlCl₃), calculate the theoretical yield of AlCl₃. Assume complete reaction.
Start with the molar mass, then find how much AlCl₃ can be produced from the given Al.
Calculate the limiting reagent and percent yield if 30.0 g of ammonium nitrate (NH₄NO₃) reacts with 40.0 g of sodium hydroxide (NaOH) to produce sodium nitrate (NaNO₃) and water. Write the balanced equation first.
Divide the masses by their molar masses, then compare ratios to find the limiting reagent.
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