- - Undergoes chemical changes
- - Changes chemically
- - Changes color, say
- - Undergoes oxidation, say
- - Undergoes a chemical change
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- - Substance which promotes a chemical reaction without undergoing permanent chemical change
- - Actors keeping record but disregarding a large source of influence
- - Agent that promotes action
- - Change precipitator
- - Agent for change
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- - substances that increase the rate of a chemical reaction without undergoing permanent change
- - They cause changes
- - They cause change
- - Catty lass travelling with those looking for a change
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- - Undergo chemical change
- - What chemicals do when they meet
- - Two active chemicals might do this
- - Change color in a chemical reaction, say
- - What Aly & AJ's "Chemicals" do
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- - Substance that undergoes a chemical change
- - A catalyst might be introduced to it
- - Changing chemical element
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- - Substance that undergoes a chemical change
- - Substance used in chemical tests on a fellow
- - chemistry substance
- - With which to do a chemical test on a public toilet? Not quite
- - Substance used to cause or confirm a chemical reaction
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- - ........ gas, one that does not readily undergo chemical reactions with other substances
- - ---- gas, aka noble gas
- - not exactly bouncing off the walls
- - not moving (physically) or not reacting (chemically)
- - Not reactive as a chemical element
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