Which of the following is true for a heating curve? O A. It shows how the pressure of a substance changes when heated. OB. It shows how the temperature of a substance changes when heated. ОС. It shows how the volume of a substance changes when heated. OD It shows how the mass of a substance changes when heated.​

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Select the correct location on the image identify the element that humans need to breathe. 2015 er r ights reserved