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compound

 
   
A species formed by the chemical combination of two or more elements. The compound iron(II) sulphide has very different properties from a mixture of iron and sulphur. For example, the mixture can be separated by a magnet; the compound cannot. Dilute hydrochloric acid reacts with iron in the mixture to give hydrogen gas; it reacts with the compound to form hydrogen sulphide gas.  

 

 

 
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Other Terms : bacteria (singular bacterium) | capacitor microphone | flare, solar

 

 

 
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