Fechar
What are thermosoftening polymers?
What are thermosetting polymers?
How does the way a polymer is made affect its properties?
How does a reversible reaction mean that the yield is less than 100%?
What are two other reasons for the yield always being less than 100%?
Why is thinking about the percentage yield important?
How can artificial colours be separated using paper chromatography? Use this example a food colouring might contain one dye or a mixture of dyes how can you tell?
What are the advantages of using a machine to analyse unknown substances?
How does gas chromatography do?
How does gas chromatography work?
Name three different reactions with three different rates.
What four things does the rate of a reaction depend on?
How can the rate of reaction be worked out?
There are other ways that the rate of reaction can be measured tell me about precipitation.
There are two more ways tell me about change in mass first.
The last one how can the rate of reaction be measured by the volume of gas given off?
How would you do the reaction of hydrochloric acid and marble chips to show the effect of increasing surface area and concentration if you increase the concentration of acid?
Look at the graph on pg 60 for reaction of hydrochloric acid and marble ships describe what it is showing.
How would you use the experiment of magnesium metal and dilute HCl for rates of reaction?
How would you do the reaction of magnesium metal with dilute HCl?
What does the experiment of Sodium Thiosulfate and HCl involve?
How is the decomposition of hydrogen peroxide a good reaction for showing the effect of different catalysts?
What three things increase collisions?
How can increasing the temperature cause faster collisions?
What is a catalyst?
How do catalysts help reduce costs in industrial reactions?
What are the disadvantages of using catalysts in industry?
What is an exothermic reaction?
What are examples of exothermic reactions and how are they useful?
What is an endothermic reaction?
Give an example of an endothermic reaction and their uses.
How can reversible reactions be endothermic and exothermic give an example?
Describe the pH scale
Give a few examples and where they would be on the pH scale.
What does an indicator do?
What is an acid, a base and an alkali?
What is neutralisation?
What do these symbols tell you:
(s), (l), (g), (aq)?
What is the typical experiment of acid + metal?
What salts will hydrochloric acid alway produce?
What type of salt will sulphuric acid always produce?
What does nitric acid produce?
What happens when acid reacts with metal oxides and hydroxides?
How does the combination of metal and acid decide the salt?
How can ammonia be neutralised to make fertiliser?
How do you make salts using a metal or an insoluble base?
How do you make salts using an alkali?
Tell me about make insoluble salts - precipitation reactions.
What is electrolysis?
How is oxidation and reduction involved in electrolysis?
Tell me about the electrolysis of molten lead bromide.
What is produced at the cathode and anode?
What are the names of the different ions that go to each electrode?
How can reactivity affect the products formed by electrolysis?
Tell me about the electrolysis of NaCl (l).
What are the uses of the products formed in the electrolysis of sodium chloride solution?
What do half equations show and how do you make them?
How is electrolysis used to remove aluminium from its ore?
How is aluminium extracted using electrolysis?
How does electroplating use electrolysis?
What are some of the different uses for electroplating?
How is electrolysis used to purify copper?
