Consider the following redox equation: CO2(g) + H2(g) = CO(g) + H2O(g). Choose an appropriate chemical...

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Consider the following redox equation: CO2(g) + H2(g) = CO(g) + H2O(g). Choose an appropriate chemical formula from the list

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Answer 1

Answer #1

1)

Oxidation state of C in reactant is +4

Oxidation state of O in reactant is -2

Oxidation state of H in reactant is 0

Oxidation state of C in reactant is +2

Oxidation state of O in reactant is -2

Oxidation state of H in reactant is +1

Here oxidation state of C is changing from +4 to +2.

So, C in CO2 is reduced

Answer: CO2

2)

CaSO4 is compound of Ca2+ and SO42-

So, oxidation state of Ca is +2

Lets find the oxidation state of S and O in SO42-

Oxidation number of O = -2

lets the oxidation number of S be x

use:

4* oxidation number (O) + 1* oxidation number (S) = net charge

4*(-2)+1* x = -2

-8 + 1 * x = -2

x = 6

So oxidation number of S = +6

Answer: option 3

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Answer 2

Answer #2

Gaand marao

source: Political

answered by: Kavita Agatwal

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Answer 3

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