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17 Cards in this Set
- Front
- Back
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What are Bulk chemicals?, give examples |
Chemicals produced on large scale and in large quantities Examples: Sulphuric acid , Ammonia |
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What are Fine chemicals?, give examples |
Produced on small scale and in small quantities Examples: Drugs, fragrances |
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What roles do chemists have within the chemical industry? |
Research and develop new chemical products and processes |
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Why do the government make laws to control different aspects of the chemical industry? Give examples of laws put in place |
To protect the safety of people and reduce the impacts on the environment Examples: Safe storage and transport of chemicals Regulations about the safe storage and transport of chemicals |
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What is the first stage of the chemical process to make chemicals |
Preparing the feedstocks (chemicals the process uses) |
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What is syntheses |
when the chemicals react together to make the product |
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What do sustainable processes do? |
Use renewable feedstocks Do not damage the environment at all |
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What happens at the end of the process of making chemicals? |
Products are separated from the rest of the mixture By-products and waste are handled separately Purity of the product it checked |
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Sustainable processes consider these factors: |
Using renewable feedstocks Finding uses for by-products Ensuring the health and safety Reducing environmental impact Social + economic benefits |
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Reactions with high atom economy... |
...produce less waste |
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Reactions that use all the atoms in the product have... |
...100% atom economy |
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Exothermic reactions... |
...Give out heat energy to surroundings |
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Endothermic reactions... |
...take in heat energy from the surroundings
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in endothermic reactions, reactants... |
...lose energy when they form products |
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in endothermic reactions, reactants... |
...gain energy when when they form products |
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Energy is taken in when... |
...bonds break |
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Energy is given out when... |
...bonds form |
