Iron(II) chloride (FeCL2) is a product of the reaction between iron metal (Fe) and hydrochloric acid (HCl) , as shown in the equation below. Fe + 2HCl → FeCL2 + H2. What is the change in oxidation number of iron in this reaction?
A) from 0 to +2
B) from +1 to +2
C) from 0 to
D) from -1 to -2
Correct Answer:
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A)H₂O
B)CO₂
C)O₂
D)O₃
E)SO₂
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