A material can be identified by its behavior when chemically combined. Which property best supports this statement? O A. reactivity
O B. specific heat
C. density
D. melting point

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.

What is the greatest challenge to the palestinian authority government in israel? a) territorial size b) lack of citizen participation c) disputes among parties d)threats from arab forces

Explain what commentary austen is making about social conversation based on this excerpt. your answer should be at least 150 words.