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The particles which make up an atom What do we use the relative atomic mass have different masses: not the actual mass of an atom? Particle Relative Mass Proton Neutron What is the relative atomic mass of electron oxygen? What is an isotope? Give two similarities of isotopes and two differences: Similarities Differences What is the relative formula mass of a Show using magnesium chloride (MgCl2) compound? how you would work out its relative formula mass: (Mg =24, Cl = 35.5) What is a mole? What does Avogadros number tell us? How do we work out the % element in a What is a molecular formula? compound? What is an empirical formula? Complete the table you would use to work out an empirical formula: moles ÷ by smallest Complete the table you would use to work To work out a number of moles we can out an reacting mass calculation: use the following triangle: Element/compound Ratio from equation The formula for working out percentage yield is: The yield of a reaction is: The formula for working out atom The atom economy for a reaction is: economy for a reaction is: The symbol for a reversible reaction is: What is a reversible reaction? What is an equilibrium? What does the Haber process make? What is this used to make? The Haber process requires two gases: What are the conditions required for the Haber process? Gas Source Pressure = Temperature = Catalyst = What happens to any nitrogen and Why was Fritz Haber a controversial hydrogen which does not react? scientist? Write the word and symbol equation for In the balance symbol equation below: the Haber Process: Fe2O3 + 3CO 2Fe + 3CO2 What is the ratio of moles of Fe2O3 to CO? What is the ratio of moles of Fe2O3 to Fe?