Kategorier: Alle - conservation - entropy - oxidation - reactions

av Boedy Noa 6 år siden

169

Unit 5 Reactions - Boedy Noa

The principles of conservation laws are fundamental in understanding chemical reactions. Matter and energy cannot be created or destroyed; they simply transform from one form to another.

Unit 5 Reactions - Boedy Noa

Unit 5 Reactions

Single Displacement Reactions

Cation Reactions: AX + B ---->BX +A
1 cation (+ion) replaces another 1 anion (-ion) replaces another
Steps: 1. Does element replace metal in compound? 2. If so, what ions are now paired? 3. Criss-Cross

Synthesis Reaction

Combustion Reaction: Complete V. Incomplete
Transition Metal has multiple charges so they multiple products
Diatomic Molecules: Pure elements that aren't just their own symbol
Element + Element -----> Compound Metal + Non Metal -----> Ionic Compound

Use of Oxidation Numbers

Should Knows:


Should Dos:

Metals lose electrons Non-metals gain electrons
Group | Oxidation# 1 | +1 2 | +2 3 | +3 4 | +/- 4 5 | -3 6 | -2 7 | -1 8 | 0

Laws of the Universe

Whitemans always right (sike.)
Not all the time
Entropy
All system tend towards a state of maximum disorder.
Conservation of Energy
Energy cannot be created or destroyed, it can only change form.
Conservation of Matter
Matter cannot be created or destroyed, it can only change form.