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Physics 5 Online
OpenStudy (anonymous):

@CausticSyndicalist Which mixture can be classified as a heterogeneous mixture? A. steel B. iron C. 14 karat gold D. salad dressing

OpenStudy (causticsyndicalist):

The pH scale measures how acidic or basic a substance is. Now since a heterogeneous mixture is 2 or more things together, it would possibly be salad dressing.

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