Give one possibility for the mystery reactant R in this organic reaction: Ni R + H2 CH3-CH2-CH3 Specifically, in the drawing area below draw the condensed structure of what R might be. There may be more than one correct answer. Note: keep in mind that the equation above states R and H2 are present in a 1:1 mole ratio.

4. Resonance. For each of the following structural formulas, provide the indicated number of resonance structures. Use curved arrows to show the electron movement between each structure, use double headed arrow to separate the structures, and enclose all of them in a single set of brackets [1. d) CH2N2 (2 structures)

If exactly 3 moles of propanol (C3H8O) is combusted in the presence of excess oxygen (O2) for form carbon dioxide (CO2) and water (H2O), how many moles of water will be produced? Enter the integer number of moles of H2O, do not enter the unit. Hint: Since this problem and two problems below rely on this reaction, make sure you balance this reaction very carefully on paper as your first step before doing any calculations. The reaction to be balanced is reaction between C3H8O(l) and O2(g) to produce CO2(g) and H2O(l).

Structural Isomers: In the next part you will learn a little about structural isomers and how to draw them. Structural isomers are compounds with the same molecular formula, but different bonding arrangements or connectivities. In other words, the atoms are connected in a different order. For example, there are 2 different compounds with the molecular formula C4H10. They are given below: H H-C- H -H H H HHH H- H H-C -H Η ΗΗ H H Do you see how the atoms are bonded in a different order in the 2 structures? So they are structural isomers. C3H12 Find three different molecular structures, isomers, with this formula. (Hint: Remember the C rule where every C atom needs to have 4 bonds.) C2H60 Find two different molecules with this formula. (Hint: What are the 2 ways you can C5H10 How many structural isomers can you find for this formula? (Hint: Notice that 2 H atoms have been removed. This means that there is EITHER 1 double bond OR there is a ring structure.) Try to provide at least 4…