Explain why mixing of red paint with white paint does not constitute a chemical reaction even though the product has a different appearance

Explanation:

In a chemical change through chemical reactions, a new kind of matter forms. When a paint is mixed together, a physical change has occurred and not a chemical change. The different color one perceives is just a mere overlap between the reflected white and red color which produces another hue.

Not all color changes infers a chemical reaction. A paint is a complex mixture on its own.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

the answer is the first option

explanation:

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