Question

24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. What is 18-karat gold considered a mixture rather than a pure substance?
A) It has a variable composition of other elements and minerals.
B) Its color is different than pure gold.
C) The gold atoms are not arranged in a repeating pattern.
D) It can be melted and transformed into a different substance.

Answer 1

Option a is the correct one

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Answer 2

Answer:

the correct answer is: A

Explanation:

this question was on USA Test Prep