Which option below describes a chemical property of a substance? A. the chlorine gas was a yellow-green color at room temperature
B. The liquid mercury boiled at a temperature of 630 K
C. The iron nail became rusty when exposed to water and air
D. The solid silver was shiny and nearly white in color.

C

Explanation:

Rust is a chemical change (reaction) all of the other options only change the state meaning that it is a physical reaction.

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.