The phase change in which a substance changes from a solid to a liquid is
a. freezing.
b. melting.
c. sublimation.
d. condensation.

What is the name of this hydrocarbon?

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

Identify the electromagnets with poles that are reversed from the electromagnet shown above