Which is a chemical property of ethanol? A. boiling point
B. density
C. flammability
D. melting point

answer; ///(b) it is composed of four protein chains and four heme groups;

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.

answer; somatic;