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Which of the following reactions is not an example of an oxidation-reduction reaction? ( 2 points) Select one: a. H2 + F2yields 2HF b. Fe + CuSO4yields FeSO4 + Cu c. CuSO4 + 2NaOH yields Cu(OH)2 + Na2SO4 d. Cl2 + ZnI2yields ZnCl2 + I2

Rodney Fox

in Chemistry

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Daniel King on February 8, 2018

The answer is: c. CuSO4 + 2NaOH yields of Cu(OH)2 + Na2SO4.Copper atom has an oxidation number of +2, the sulfur atom oxidation number of +6, oxygen has an oxidation number of-2, sodium has an oxidation number of +1 and hydrogen has a +1 on both sides of the chemical reaction, so that the elements do not change their oxidation number.


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