2.1 Elements, compounds and mixtures
Click on any question below to reveal the interactive flashcard answer key:
1. Name the three types of particles that make up all matter.
Atoms, molecules and ions.
2. What is the definition of an element?
A substance that consists of only one type of atom.
3. How is a compound defined in chemistry?
A substance formed from two or more different elements that are chemically combined.
4. What is a mixture?
Two or more substances that are physically mixed together but not chemically combined.
5. Describe a primary difference between a compound and a mixture regarding how they are joined.
In a compound, the elements are chemically bonded in fixed proportions, whereas in a mixture, the components are physically combined and can be separated by physical means.