Terms of the unit

4. the state or power of being reactive or the degree to which a thing is reactive.
6. flask,is a piece of laboratory apparatus, a type of laboratory flask, calibrated to contain a precise volume at a certain temperature.
10. inquiry: the diverse ways in which scientists study the natural world and propose explanations based on the evidence derived from their work.
13. law: Charles's law is an experimental gas law that describes how gases tend to expand when heated.
14. flask: conical flasks with wide flat bottoms and tapered necks.
15. A combustible material is a material that can burn in air under certain conditions.
16. law:gas law, stating that the pressure and volume of a gas have an inverse relationship. If volume increases, then pressure decreases and vice
17. Chemical hazards and toxic substances pose a wide range of health hazards (such as irritation, sensitization, and carcinogenicity)

1. a substance made up of various types of particles that occupies physical space and has inertia
2. change, a change of materials into another, new materials with different properties and one or more than one new substances are formed.
3. property. physical property is any property that is measurable, involved in the state of a physical system, whose value represents the intensity on the object's state ...
5. property,
7. change, the material involved in the change is structurally the same before and after the change.
8. is a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about everythin
9. intensive property is not necessarily homogeneously distributed in space; it can vary from place to place in a body of matter and radiation
11. a corrosive substance.
12. property, A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.