Chemistry

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  • Created by: joduffy
  • Created on: 01-06-15 12:54
The time taken between a reaction starting and stopping
reaction-time
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what measures amount of product formed in a period of time?
rate-of-reaction
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____ is a measure of how much solute is dissolved in a solvent
concentration
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To increase rate of reaction, __ reactant is used instead
powdered
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This changes the rate of reaction without itself changing
catalyst
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mass of a unit of that substance compared to the mass of a carbon atom
relative-formula-mass
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the principle that total mass is the same before and after the reaction
conservation-of-mass
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beginning with f__, a reason why percentage yield is always below 100%
filtration
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Use processess with a high ___ to reduce waste
atom-economy
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a reaction which transfers energy to the surroundings
exothermic
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a reaction which takes in energy during the reaction
endothermic
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example of endothermic reaction
electrolysis
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example of an exothermic reaction
fireworks
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method used to measure energy transfer in chemical reactions
calorimetry
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apart from mass of heated water and temperature change, what is the other number to work out energy transfer
4.2
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high value chemicals needed in small batches
soeciality-chemicals
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chemicals needed in large amounts
bulk
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how are bulk chemicals made?
continuous-processes
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what is insoluble in water and doesn't conduct electricity
diamonds
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what is slippery and has a high melting point
graphite
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diamond and graphite are both____
allotropes-of-carbon
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different forms of the same element in the same physical state
allotropes-of-carbon
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what joins carbon atoms in diamond and graphite
covalent-bonds
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____ has a layered structure in which each carbon atom is joined to three others
graphite
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___ is a substance in which each carbon atom is joined to four othersr
diamond
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electrons which are free to move
delocalised
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____ are fullerene molecules that are joined together
nanotube
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each molecule of this has 60 carbon atoms and forms a hollow sphere
buckminster-fullerene
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Other cards in this set

Card 2

Front

what measures amount of product formed in a period of time?

Back

rate-of-reaction

Card 3

Front

____ is a measure of how much solute is dissolved in a solvent

Back

Preview of the front of card 3

Card 4

Front

To increase rate of reaction, __ reactant is used instead

Back

Preview of the front of card 4

Card 5

Front

This changes the rate of reaction without itself changing

Back

Preview of the front of card 5
View more cards

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