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16 Cards in this Set
- Front
- Back
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The mole-to-mole ratio of reactants and products in a chemical reaction is called ______________.
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Stoichiometry
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Given
Mg + 2HCl --> MgCl2 + H2 how many moles of HCl was used in the reaction if 13 moles MgCl2 were produced? |
26 moles
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A simplified ratio of all elements in a given compound is called a ______________
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Empirical Formula
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In the reaction CH4 + 2O2 --> CO2 + 2H2O,
If 3.6 grams of H2O were produced, how much O2 was consumed? |
6.4 g, 0.2 mol
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A molecular formula is different from an empirical formula in that the ratio in molecular formulas are not __________.
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simplified
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A ____________ formula indicates the exact number of atoms of each element in the compound.
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molecular
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Ionic compounds are represented by ___________ formulas.
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empirical
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How many moles of water are present if 5 g O2 is given off during electrolysis?
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0.3 mol H2O
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True or False:
Al2O3 + 2Fe --> Fe2O3 + 2Al means for every 2 grams Fe, 2 grams are Al created. |
FALSE, yo'.
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Stoichiometry is essential to standardization reactions. Another name for them is _______________
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titrations
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Ba(OH)2 is reacted with excess H2SO4 to form 10 g of precipitate BaSO34.
How much Ba(OH)2 was used in this reaction? |
Ba(OH)2 + H2SO4 --> BaSO4 + 2H2O
7.34 g |
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A titration proceeds until the _______ of acid equals to _______ of base.
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moles; moles
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10 mL of 1.0 M HCl solution is reacted with 0.4 M NaOH. What volume of NaOH solution was used?
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25 mL
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What is the empirical formula of dextrose, C6H12O6?
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CH2O
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For ionic compounds, the _________ of the ions must be balanced.
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charges
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What ionic compound is created by reacting F3+ ions with SO42- ions?
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Fe2(SO4)3
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