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PhET Interactive Simulations University of Colorado Boulder
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Reactants Products and Leftovers
The simulation can be used to:
*Relate the real-world example of making sandwiches to chemical reactions.
*Describe what limiting reactant means using examples of sandwiches and chemicals at a particle level.
*Identify the limiting reactant in a chemical reaction.
*Explain the Law of Conservation of Particles using examples of sandwiches and chemical reaction.
*Predict the amounts of products and leftovers after reaction using the concept of limiting reactant.
*Predict the initial amounts of reactants given the amount of products and leftovers using the concept of limiting reactant.
*Translate from symbolic (chemical formula) to molecular (pictorial) representations of matter.
The simulation is designed to give students a conceptual understanding of limiting reactants, rather than practice at solving algorithmic problems that require mass/mole conversions.
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