Across
- 7. one of the two forms of vaporization. It is the process whereby atoms or molecules in a liquid state (or solid state if the substance sublimes) gain sufficient energy to enter the gaseous state. It is the opposite process of condensation
- 11. defined as a phase transition from the liquid state to the gas state, usually occurring when a liquid is heated
- 12. a state of matter characterized by particles arranged such that their shape and volume are relatively stable.
- 13. allows for a change in substance
- 15. state of matter consisting of particles that have neither a defined volume nor defined shape.
- 17. is a class of organic addition reaction that typically proceeds in a step-wise fashion to produce the addition product, usually in equilibrium, and a water molecule
- 20. branch of science that involves the study of the composition, structure and properties of matter.
Down
- 1. chemical reaction that releases energy through light or heat
- 2. pure substance made up of 2 or more elements
- 3. derived unit of energy, work, and heat.
- 4. the process by which a substance changes from the solid phase to the liquid phase.
- 5. the process in which a liquid changes to a solid. It occurs when a liquid cools to a point at which its particles no longer have enough energy to overcome the force of attraction between them
- 6. the transition from the solid phase to the gas phase without passing through an intermediate liquid phase. This endothermic phase transition occurs at temperatures and pressures below the triple point
- 8. changes hen matter changes to from one state (solid, liquid, gas, plasma) to another. These changes occur when sufficient energy is supplied to the system (or a sufficient amount is lost), and also occur when the pressure on the system is changed.
- 9. any process which requires or absorbs energy from its surroundings, usually in the form of heat
- 10. the transfer of energy that results from the difference in temperature between a system and its surroundings.
- 14. characteristics of matter that is not associated with a change in its chemical properties. (does not change identity of the substance)
- 16. state of matter where the gas phase is energized until atomic electrons are no longer associated with any particular atomic nucleus.
- 18. the ability to do work
- 19. nearly compressible fluid that conforms to the shape of its container but retains a nearly constant volume independent of pressure.