Which of the following is a heterogeneous mixture?A.Gold alloyB.SaltwaterC.Rubbing alcoholD.Paint
Question
Which of the following is a heterogeneous mixture?A.Gold alloyB.SaltwaterC.Rubbing alcoholD.Paint
Solution
The answer is D. Paint.
Here's why:
A. Gold alloy - This is a homogeneous mixture because the different components (gold and other metals) are evenly distributed on a molecular level.
B. Saltwater - This is also a homogeneous mixture. The salt is evenly distributed throughout the water, making it the same throughout.
C. Rubbing alcohol - This is another example of a homogeneous mixture. The alcohol is evenly distributed throughout the mixture.
D. Paint - This is a heterogeneous mixture. The pigments in paint are not evenly distributed on a molecular level, which is why you have to stir paint before using it to ensure the pigments are evenly distributed.
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