Across
- 3. Water (H₂O) is a ____________ because it is made from hydrogen and oxygen chemically combined.
- 4. A ____________ is formed when two or more substances are physically combined.
- 6. A substance made up of only one type of atom is called an ____________.
- 9. Compound can be separated by using _________ method.
Down
- 1. The components of a mixture can be separated by ____________ methods.
- 2. During electrolysis, water is broken down into oxygen and ____________ gases.
- 4. When two or more substances are mixed but do not chemically react, the result is called a ____________.
- 5. In a mixture, the substances do not undergo a ____________ reaction.
- 7. A compound has ____________ properties from the elements that make it.
- 8. Carbon dioxide is a compound made up of ______ and oxygen.