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The sum of the oxidation numbers of all atoms in a netrual compound is
+1
0
+2
H2S (note the numbers should be subscripts)
reduction
-1
0
+2
If H has an oxidation number of +1 and S has an oxidation number of-2 what will be the correct chemical formula for a compound containing only those two elements?
+1
0
+2
H2S (note the numbers should be subscripts)
reduction
-1
0
+2
In the compound CaO if O has an oxidation number of -2 what is the oxidation number of Ca?
+1
0
+2
H2S (note the numbers should be subscripts)
reduction
-1
0
+2
When hydrogen combines with a metal, the oxidation number of hydrogen is
+1
0
+2
H2S (note the numbers should be subscripts)
reduction
-1
0
+2
If an atom gives up two electrons it becomes an ion with a charge of
+1
0
+2
H2S (note the numbers should be subscripts)
reduction
-1
0
+2
When an atom gains an electron what has taken place?
+1
0
+2
H2S (note the numbers should be subscripts)
reduction
-1
0
+2
All elements in Group 1 of the periodic table have an oxidation number of
+1
0
+2
H2S (note the numbers should be subscripts)
reduction
-1
0
+2
A pure element (not in combination) will have an oxidation number of
+1
0
+2
H2S (note the numbers should be subscripts)
reduction
-1
0
+2
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