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Unknown compounds can usually be identified based solely on their _____.

A. chemical properties
B. reactivity
C. volatility
D. physical properties

User Mnrl
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2 Answers

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hysical proprerties i think
User Snowzjy
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B reactivity  because compounds are made of atoms and molecules and you need to know what they react to to know what they are made up of. 
User Kache
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