Question

Why are streak plates used to test minerals?

A. Small impurities can cause big changes in the color of a mineral.
B. Most minerals are not soluble in water.
C. The mineral reacts with a compound on the streak plate.

Answer 1

A. Small impurities can cause big changes in the color of a mineral.

Answer 2

Answer:

(A) Small impurities can cause big changes in the color of a mineral.

Explanation:

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