Homework Help: science

Posted by Sheryl on Monday, October 17, 2011 at 1:19am.

Which of the following substances are homogeneous and which are heterogeneous? Blood, carbon dioxide gas, solid carbon dioxide, rock, steak, iron, rust, concrete, air, oxygen, salt, milk.

science - SraJMcGin, Monday, October 17, 2011 at 2:16am
Try some of the following links for information:

1. http://search.yahoo.com/search?fr=mcafee&p=homogeneous+substances

2. http://search.yahoo.com/search?fr=mcafee&p=jeterogeneous+substances

Sra

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