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                              Q:
                           
                           
                                                      | A) They are substances | B) They have properties similar to those of their component elements | 
| C) They can be physically separated into their component elements | D) They have compositions that vary | 
                              Answer:   A) They are substances
                              
                                                            
                              
Explanation:
                               
                           
                           Explanation:
Compounds are substances is true about them.
 
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