CAVA chem 302 303 S1U6L1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Chemists use [...] to calculate the amounts of reactants they need for a desired amount of product. | Chemists use stoichiometry to calculate the amounts of reactants they need for a desired amount of product.
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| Stoichiometry is the science of using the right amount of [...] to get the right amount of [...]. | Stoichiometry is the science of using the right amount of reactants to get the right amount of product.
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| The word stoichiometry was coined from Greek words meaning "[..]" and "measure." | The word stoichiometry was coined from Greek words meaning "element" and "measure."
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| To use the right ratio of reactants to products, chemists start with [...] equations. | To use the right ratio of reactants to products, chemists start with balanced equations.
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| The [...] show how many copies of each molecule or formula unit are present. | The coefficients show how many copies of each molecule or formula unit are present.
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| The [...] show how many atoms are in each molecule or formula unit. | The subscripts show how many atoms are in each molecule or formula unit.
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| Balanced equations give you the [...] of reactants to products, but their actual amounts can be stated in different ways. | Balanced equations give you the ratios of reactants to products, but their actual amounts can be stated in different ways.
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| The word stoichiometry was coined from Greek words meaning "element" and "[...]." | The word stoichiometry was coined from Greek words meaning "element" and "measure."
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