Chapter 3.1-3.5 Review packet Balancing and Stoichiometry

# Predict the missing product in the following

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10. Predict the missing product in the following unbalanced combination reaction. Al 2 + N --> ___________ a. AlN b. Al 3 N c. AlN 2 d. Al 3 N 2 e. AlN 3 11. Which one of the following is not true concerning automotive air bags? 12. Lime, also known as quicklime, has the formula ____________. 13. The balanced equation for the decomposition of sodium azide is ____________. a. 2NaN 3 (s) 2Na(s) + 3N 2 (g) b. 2NaN 3 (s) --> Na 2 (s) + 3N 2 (g) c. NaN 3 (s) --> Na(s) + N 2 (g) d. NaN 3 (s) --> Na(s) + N 2 (g) + N(g) e. 2NaN 3 (s) --> 2Na(s) + 2N 2 (g)

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14. The reaction used to inflate automobile airbags ____________. 15. Which of the following are combination reactions? 1) CH 4 (g) + O 2 (g) --> CO 2 (g) + H 2 O(l) 2) CaO(s) + CO 2 (g) --> CaCO 3 (s) 3) Mg(s) + O 2 (g) --> MgO(s) 4) PbCO 3 (s) --> PbO(s) + CO 2 (g) a. 1, 2, and 3 b. 2 and 3 c. 1, 2, 3, and 4 d. 4 only e. 2, 3, and 4 16. Which of the following are combustion reactions? 1) CH 4 (g) + O 2 (g) --> CO 2 (g) + H 2 O(l) 2) CaO(s) + Co 2 (g) --> CaCO 3 (s) 3) PbCO 3 (s) --> PbO(s) + CO 2 (g) 4) CH 3 OH(l) + O 2 (g) --> CO 2 (g) + H 2 O(l)
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