Chemical Reactions

1. Elements, Atoms, Compounds and Molecules. By D’Arcy Meredith

2. Elements An element is a pure substance made up of one type of atom.

3. Atoms An atom a fundamental piece of matter made up of protons, neutrons and electrons. Electrons Protons Neutrons

4. Metals Metal is an element, compound, or alloy characterized by electrical and heat conductivity .

5. What is non-metal? A non-metal is an element on the periodic table that does not have the properties of a metal element such as malleability. Non metals are usually found as gases in nature or weak, brittle solids.

6. Periodic Table Description of what a periodic table is?

7. What is a compound? A chemical compound is a substance composed of two or more different elements chemically bonded together in a fixed proportion by mass.

8. Chemicsal Reaction A chemical reaction is a process that leads to the transformation of one set of chemicals substances to another.

9. Identify a chemical reatcion Production of heat, light, gas or precipitate.

10. Physical and Chemical changes. A chemical change is non reversible as a physical change is. For example, the burning of wood is a chemical change, as you can't unburn it, whereas the freezing of water would be a physical change because it can be reversed.

11. Factors affecting a Reaction Rate. Temperature, concentration, size of particles or using a catalyst. Add a picture.

12. Bibliography http://wiki.answers.com/Q/What_is_an_element http://www.qrg.northwestern.edu/projects/vss/docs/Propulsion/1-what-is-an-atom.html http://en.wikipedia.org/wiki/Metal http://wiki.answers.com/Q/What_is_a_non-metal http://en.wikipedia.org/wiki/Chemical_compound http://en.wikipedia.org/wiki/Chemical_reaction http://www.virted.org/chemist/pcchange.html http://www.purchon.com/chemistry/rates.htm