Module 5 Flashcards
Oxidation number for Hydrogen?
+1
Oxidation number for Oxygen is
-2
Oxidation number for Nitrogen is
-3
Oxidation number for Halogens are usually?
-1
which 5 ions are insoluble?
Ba, Hg, Pb, Ag
Which ion has a positive oxidation number and negative oxidation number when two non metals combine?
Positive - Lower electronegativity
Negative - Higher ctronegativity
The sum of a neutral oxidation compound is equal to?
0
What are spectator ions?
Ions that do not change on either side of the equation
How to tell if something is a acid base neutralization reaction?
If at the end there is water and a salt (ionic compound)
How to tell if a reaction is a precipitation equation?
If there is two aqueous reactants and the product turns into a solid - consistent with precipitation reactions
How to tell if a reaction is redox?
The transfer or share of electrons within a reaction
non metals gain electrons
metals lose electrons
look at the electronegativity of the atoms and see which one is higher or lower - that will tell you which one - higher = gain lower = lose
What is the easist way to tell what type of reaction it is?
By looking at the end product
What is mettallurgy?
extracting purifying metals - that makes use of multiple redox reactions
Redoc behaviour - how to tell on the periodic table that something is more electronegative?
higher the highest on the group - lower the smallest
left the least and going to the right the most
Define corrosion
oxidizing a metal - causes rust
Define combustion
burning of fuel by rapid oxidation with oxygen in the air
Define respiration
process of breathing using oxygen
Define bleaching
The use to lightening material using redox reactions
A reducing agent…
- causes reduction
- undergoes oxidation
- becomes more positive
- may gain o2 atoms
A oxidation agent…
- undergoes reduction
- causes oxidation
- becomes more negative
- may lose o2 atoms
