C4 Predicting and Identifying Reactions and Products Links  C3.1 Introducing Chemical Reactions C4.2 Identifying the Products of Chemical Reactions Describe how you carry out the test for oxygen What would happen if there was a positive result? Describe the stepwise method for a flame test 1. 2. 3. 4. What colour would the flame be for… Lithium Sodium Potassium Calcium Copper Describe the method for identifying metal ions with sodium hydroxide What colour would the precipitate be for… Iron (II) Iron (III) Zinc Calcium Copper Describe how you carry out the test for carbon dioxide What would happen if there was a positive result? Write an equation for the reaction of limewater with carbon dioxide Describe how you carry out the test for hydrogen What would happen if there was a positive result? Write a word and symbol equation for the reaction of hydrogen with oxygen Describe how you carry out the test for chlorine What would happen if there was a positive result? Keywords

C4 Predicting and Identifying Reactions and Products Describe the test for sulfate ions What would happen if there was a positive result? Write an ionic equation to show the chemical reaction that occurs Links C4 Predicting and Identifying Reactions and Products  C3.1 Introducing Chemical Reactions C4.2 Identifying the Products of Chemical Reactions For gas chromatography: What does retention time mean? What does the area under a peak represent? For mass spectroscopy of a compound: What two pieces of information does the spectra give us? Describe the test for halide ions What would happen if there was a positive result? Write an ionic equation to show the chemical reaction that occurs for Cl- When we say a scientific instrument is sensitive, what do we mean? Describe the test for carbonate ions What would happen if there was a positive result? Write an ionic equation to show the chemical reaction that occurs When we say a scientific instrument is accurate, what do we mean? For mass spectroscopy of an element: What two pieces of information does the spectra give us? Other than being sensitive and accurate, what is the other advantage of using a scientific instrument to analyse substances? Keywords