What is the name of this hydrocarbon?
3,3–dimethylhexane
4,3–dimethylhexane
4,4–methylhexene
4,4–trimethylhexyne done

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.