Problems and questions 1. Would you expect a solid that is odorless and soluble in water but not flammable to be an: organic or inorganic compound? Why? 2. Circle the following that do not meet the "bonding requirement" for carbon atoms. a) two single bonds and a double bond b) a single bond and two double bonds c) three single bonds and a triple bond d) two double bonds: 3. Write the balanced equation for the combustion of propane (C3Hs). 4. Circle the following in which the two representations are not the same molecule. a) CH3CH2CH2OH b) c) 5. Predict the solubility of the following substances in water by writing soluble or insoluble: vegetable oil ammonium nitrate potassium iodide polyethylene