(Solved): 1. Consider the combustion reaction of propane, used in barbecue grills: \[ \mathrm{C}_{3} \mathrm{ ...

1. Consider the combustion reaction of propane, used in barbecue grills: \[ \mathrm{C}_{3} \mathrm{H}_{8}+5 \mathrm{O}_{2} \cdots \ldots \text { à } 3 \mathrm{CO}_{2}+4 \mathrm{H}_{2} \mathrm{O} \] 1. a) how many moles of oxygen are needed if you start with \( 0.15 \) moles of propane? 2. b) how many moles of water will be produced? 3. c) if you start with 125 grams of oxygen how many grams of water will be produced? 2. Identify the element: 3. a) \( [\mathrm{Ar}] 4 \mathrm{~s}^{2} 3 \mathrm{~d}^{10} 4 \mathrm{p}^{5} \) 4. b) \( [\mathrm{Ne}] 3 \mathrm{~s}^{2} 3 \mathrm{p}^{1} \) 3. Write the electron configuration for the following: 4. a) V 5. b) \( \mathrm{S} \) 6. c) \( \mathrm{Rb} \)