Unit 5 Unit Cover

3. A state change is a ________ change.
7. The conversion of a substance from liquid to gas phase.
8. To change in structure, appearance, or character.
10. A state of balance or stability reached when opposing forces or influences are equal.
12. Conversion of a substance from a liquid to a solid state at a specific temperature.
14. Process of a substance changing from liquid to gas at a temperature below its boiling point.
15. The smallest unit of a chemical compound that can exist, formed by two or more atoms.
16. The capacity to do work or produce heat.
17. A distinct form or state of matter with uniform chemical and physical properties.
18. Anything that occupies space and has mass, consisting of atoms or molecules.
21. A substance that flows freely but is of constant volume
22. The phase transition in which gas transforms directly into solid without passing through the liquid phase.
24. he energy contained within a system that is responsible for its temperature

1. Transition of a substance from solid directly to the gas phase without passing through the liquid phase.
2. A substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape
4. The transformation of a gas or vapor into a liquid.
5. The three basic states of matter are ______, liquid and gas.
6. Energy which a body possesses by virtue of being in motion.
9. Transformation of a solid into a liquid as a result of heating.
11. Change from one state, form, or condition to another.
13. A measure of the average kinetic energy of particles in a substance.
19. The act of giving or receiving something in return for something else.
20. A state of balance or stability reached when opposing forces or influences are equal.
23. Different forms or conditions of matter, such as solid, liquid, gas, and plasma.