To decide if a chemical reaction is bond making or breaking the amount of ? made and produced need to be compared
Energy
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Order of the stages of an exothermic reaction...
Energy is needed to break reactants into separate atoms, then atoms join to form new bonds, releasing energy
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Chemicals needed in large quantities are made using...
a continuous process
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Continuous processing makes
large amounts of the same product, takes place in large chemical plants with good transport links, takes less energy to maintain
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Chemicals needed in small quantities are made using
a batch process
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Batch process...
make a fixed amount, allow batches to be made and stored, allows products to be made and sold by a given date, easy to change product on production, and easy to make a new batch of something
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Batch process disadvantages...
process is inefficient if not in constant use, high initial building and set up costs, supervision is needed, time loss due to cleaning needed
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How many years does it take approx for a new drug to be developed?
10 years
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Extracting chemicals from plants include...
Crushing to disrupt cell walls,boiling to dissolve compounds, chromatography to separate and identify individual compounds, isolating, purifying, and testing potentially useful compuounds
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Other cards in this set
Card 2
Front
Bond making is an
Back
Exothermic reaction
Card 3
Front
To decide if a chemical reaction is bond making or breaking the amount of ? made and produced need to be compared
Back
Card 4
Front
Order of the stages of an exothermic reaction...
Back
Card 5
Front
Chemicals needed in large quantities are made using...
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