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Is protein an element or a compound or a homogeneous mixture or a heterogeneous mixture?
Wiki User
∙ 10y ago
A protein can not be an element, because every protein must contain at least four elements: carbon, hydrogen, oxygen, and nitrogen. A pure protein is a compound, but it may be mixed either homogeneously or heterogeneously with other molecules that are so chemically similar that they are difficult to separate.
Wiki User
∙ 10y ago
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