EasyChemistryHigh School (11–12)Redox Reactions › Oxidation Number and Types of Redox ReactionsNumericalConceptualA-LevelAPIB
Give the oxidation number of the metal in each compound, and write the name with its Stock number…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Give the oxidation number of the metal in each compound, and write the name with its Stock number: (a) ; (b) ; (c) ; (d) .
Need a reminder? The key ideaShow
Oxidation numbers: free element 0; simple ion its charge; F is -1; H is +1 (in metal hydrides -1); O is -2 (peroxides -1, superoxides -1/2, in OF2 +2); alkali metals +1, alkaline earth metals +2. The numbers add up to the charge of the species. A rise is oxidation, a fall is reduction.
The worked solution
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Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a). , so : iron(III) chloride.
Step 2. (b). , so : copper(I) oxide.
Step 3. (c). , so : manganese(IV) oxide.
Step 4. (d). , so : tin(II) chloride.
Answer: , , and , named iron(III) chloride, copper(I) oxide, manganese(IV) oxide and tin(II) chloride.
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