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?

Answer 1

It has a variable composition. 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 2

the answer is A)it has a variable composition of other elements and minerals. because 18-karat gold is not made of just gold atoms