1. Given the reaction: Ca + 2 H2O → Ca(OH)2 + H2 How many moles of water are needed to react completely with 2.0 moles of Ca?
a. 1.0 moles b. 2.0 moles c. 0.5 moles d. 4.0 moles
2. Fe + H2SO4 → FeSO4 + H2 is an example of
a. Single Displacement b. Synthesis c. Double Displacement d. Decomposition
3. Hydrazine, N2H4 , and dinitrogen tetroxide, N2O4 react to form gaseous nitrogen and water. Which of these represents a properly bal
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