Which of the following groups of chemical elements would you expect to be most alike in their physical and chemical properties?

Asolid that forms and separates from a liquid mixture is called

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.

What is the measured amount of a product obtained from a chemical reaction?