Across
- 2. change changes affecting the form of a chemical substance
- 4. propertie a property (as color, hardness, boiling point) of matter not involving in its manifestation a chemical change
- 6. changes a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances
- 8. is defined as a state of matter consisting of particles that have neither a defined volume nor defined shape
- 9. is a material made up of two or more different chemical substance/substances which are not chemically combined
- 10. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
- 12. any substance composed of identical molecules consisting of atoms of two or more chemical elements
- 13. material substance that constitutes the observable universe
Down
- 1. changing into a gas when energy is added
- 3. any substance that cannot be decomposed into simpler substances by ordinary chemical processes
- 4. substance a sample of matter with both definite and constant composition and distinct chemical properties
- 5. is one of the states of matter
- 6. properties a particular substance that can be observed in a chemical reaction
- 7. smallest unit into which matter can be divided without the release of electrically charged particles
- 11. one of the three basic states of matter, the others being liquid and gas