Please enable JavaScript.
Coggle requires JavaScript to display documents.
chapter 2 (2.1 substances (compound (the active ingregent in asprin),…
chapter 2
-
-
2.5
A physical change is a change to a sample of matter in which some properties of the material change, but the identity of the matter does not.
-
-
2.8
Chromatography is the separation of a mixture by passing it in solution or suspension or as a vapor (as in gas chromatography) through a medium in which the components move at different rates.
-
2.10
A compound is a substance that contains two or more elements chemically combined in a fixed proportion.
-
2.9
An element is the simplest form of matter that has a unique set of properties. Examples of well-known elements include oxygen, iron, and gold (see the figure below).
2.9
An element is the simplest form of matter that has a unique set of properties. Examples of well-known elements include oxygen, iron, and gold (see the figure below).
-