Redox Flashcards
simply what do oxidation states show
how many electrons an atom has gained or lost
what is the oxidation rule for uncombinde elements
0
what is the oxidation number rule for simple ions
number is the charge on the ion
what is the rule of oxidation for a neutral compound
0
what is the oxidation number rule for complex ions (ions containing more than one ion)
sums to the total charge of the ion
what is hydrogens normal oxidation number and the exception to this rule
normally hydrogen= +1
hydrogen = -1 as a metal hydride
what is oxygens normal oxidation number and the exception to this rule
normally oxygen = -2
oxygen = -1 as a peroxide
what is fluorine’s normal oxidation number
-1
name the compound CuSo4
Copper (II) Sulphate
name the compound Fe(OH)2
iron (II) hydroxide
name KMnO4
potassium manganate (VII)
name the ionic compound SO3 -2
sulfate (IV)i ion
name the ionic compound SO4 -2
sulfate (IV) ion
Explain the trend in hailide reducing power
As you go down the group halide ions increase in atomic radius making it easier to loose electron
What is the name for chlorine with a -1 oxidation state
Chloride
What is the name for chlorine in ClO-
Chlorate
What is the name and oxi number for Br in BrO-
Bromate (l)
+1
What is the name and state number for Br in BrO2-
Bromate (lll)
+3
What are iodine ions referred to as with +5 and +7 oxidation states
Iodate
Why can lithium carbonate be decomposed
Lithium ion is small eniugh to polarise the carbonate ion resulting in lithium oxide and carbon dioxide
What does group 2 carbonates decompose into
Group 2 oxide and carbon dioxide
What do group 2 nitrates decompose into
Group 2 oxide and oxygen
What are the 3 products formed in chlorine disproportionation reactions with hot alkalis
Metal chlorate V
Metal chloride
Water
