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Unformatted text preview: What if she has 0.85 grams of iron? 7. If 16.0 grams of hydrogen gas (H 2 ) were consumed in a reaction, how many moles of H 2 were used? 8. If 144.0 grams of water (H 2 O) were produced in the reaction above (#7)how many moles were produced? 9. Given the information in 7 & 8 above, how many moles of H 2 O are produced for each mole of H 2 consumed? Hint: Set up the appropriate ratio, then make a statement to answer the questions. 10. Using the informationin #9 make a statement for molecules of H 2 O/molecule of H 2 . Explain why we can use moles to answer questions about molecules. 11. Presuming that enough oxygen gas (O 2 ) is available, write a balanced equation for the reaction described in 7 & 8....
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