Reaction Prediction 31 1. equal volumes of equal molar solutions of sulfuric acid and barium hydroxide are combined. What is the resulting pH of the solution. Explain 2. sulfur dioxide gas is passed over solid calcium oxide. Draw the lewis structure for sulfur dioxide 3. solutions of sodium hydroxide and nitrous acid are mixed Will the resulting solution be less than, greater than, or equal to 7? Explain. 4. excess fluorine gas is exposed to ethane gas. What is the hybridization of carbon in ethane, ethane, and ethyne? 5. Solid dinitrogen pentoxide is added to water What is the oxidation state of nitrogen before and after the reaction? 6. Lithium metal is burned in air Besides combustion, what type of reaction could this be classified as? 7. A concentrated solution of ammonia is added to a suspension* of zinc hydroxide forming a complex ion What would happen if an acid were added to the resulting solution? 8. solid ammonium carbonate is heated Draw all possible lewis structures for the carbonate ion 9. a solution of ammonium sulfate is added to a solution of barium hydroxide Name the precipitate formed 10. solutions of manganese(II) sulfate and ammoniumsulfide are mixed Why does manganese have multiple oxidation states but magnesium doesn’t? 11. glacial acetic acid is mixed with liquid methanol What type of organic reaction can this be characterized as? 12. A strip of zinc is immersed in a concentrated hydrochloric acid solution. List two observations that indicate a chemical reaction is occurring. 13. Aluminum metal is added t a solution of copper (II) chloride List two observations that indicate a chemical reaction is occuriring. 14. solid lithium oxide is added to excess water? How would the reaction differ is just lithium metal were added to water? 15. solutions of sulfuric acid and potassium sulfite are mixed Draw the lewis structure(s) for sulfite ion