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.
