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Oil and vinegar salad dressing is only homogeneous for a brief time when you shake it. The purpose of shaking it is to make it homogeneous before you pour it. After a few minutes of sitting still, it will return to a heterogeneous state.

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9y ago
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13y ago

It is a heterogeneous, because it will separate. The proportion of the components is not consistent through out.

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Wiki User

13y ago

no it's homogenous

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Anonymous

Lvl 1
3y ago

A homogeneous mixture can only form when one of the substances can dissolve the other one. Oil and water cannot dissolve each other, so they must form a heterogeneous mixture with small particles of vinegar dispersed throughout the oil, yet not dissolved.

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Anonymous

Lvl 1
3y ago

Homogeneous

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Q: Is a oil-and-vinegar salad dressing a homogeneous or heterogeneous substance?
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