what is chemistry

What is chemistry - Chapter1 19:07 Matter ScientificLaws MASSEnergy E=MC^2

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 1 19:07 What is chemistry- Chemistry is all about electron transfer.  Matter- Energy- the ability to do work Scientific Laws Law of Conservation of Mass Law of conservation of Energy Einstein’s Theory of Relativity MASS Energy E=MC^2  Daltons atomic theory states that a pure element is composed of atoms however if it is  broken beyond atomic state it will no longer be that element.  Smallest unit that makes up the element. You can compare atoms of elements to  Compound is a group of atoms bound together in some matter Relative numbers in kinds of atoms are constant in a compound Change the ratio changes the compound All Chemical Symbols Start with Capital Letters! Nomenclature is the process by which we name compounds! Metals vs. NON Metals Metalloids= Semi Conductors Metals have different chemical activity than non metals!
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Know the names and symbols of the first 36 compounds! Atoms are Spherical Made up of: Protons(+)In the Neculeus Neutrons(Neutral) In the Neculeus Electrons(-) Molecules are groups of atoms bounded together They have a particular arrangement in space Alloy is a mixture of two metals States of Matter-Macroscopic  Solid-has a definite volume Liquid-takes the shape of everything you put them in Gas-takes the shape of everything you put them in Temperature is all relative States of matter Microscopic         Molecules will always be covalent Solid Molecules are in a fixed position (condensed phases) Liquid Molecules are free to move around (condensed phases) Gas Molecules are mostly open space (free to move) We change states of matter by heating or adding energy
Background image of page 2
Solid to liquid is melting Any time you heat a substance it will expand Liquid to a gas is evaporation Must add energy to give molecules kinetic energy so they will move Liquid to a solid is freezing This takes away kinetic energy of the molecules
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/25/2012 for the course CHEM 4385 taught by Professor Staff during the Fall '11 term at Texas State.

Page1 / 8

What is chemistry - Chapter1 19:07 Matter ScientificLaws MASSEnergy E=MC^2

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online