Classification of Matter Video Lessons

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Concept:

Problem: Which best describes a compound such as magnesium oxide? A. an impure substance that is made up of two elements B. a mixture of two uncommon substances C. a mixture of two common elements D. a pure substance that is made up of different elements

FREE Expert Solution

Recall that 

  • pure substance – made up of one compound
  • impure substance – made up of two or more compound
  • mixtures combinations of two or more pure substances (elements or compounds).


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Problem Details

Which best describes a compound such as magnesium oxide? 

A. an impure substance that is made up of two elements 

B. a mixture of two uncommon substances 

C. a mixture of two common elements 

D. a pure substance that is made up of different elements

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