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3 years ago

Give the half equation to show what happens to oxygen when it is rusting

Chemistry

1 answer:

ycow [4]3 years ago

3 0

Answer:

½O 2 + 2e - + H 2O → 2OH.

Explanation:

Redox reactions - Higher

In terms of electrons:

oxidation is loss of electrons

reduction is gain of electrons

Rusting is a complex process. The example below show why both water and oxygen are needed for rusting to occur. They are interesting examples of oxidation, reduction and the use of half equations:

iron loses electrons and is oxidised to iron(II) ions: Fe → Fe2+ + 2e-

oxygen gains electrons in the presence of water and is reduced: ½O2 + 2e- + H2O → 2OH-

iron(II) ions lose electrons and are oxidised to iron(III) ions by oxygen: 2Fe2+ + ½O2 → 2Fe3+ + O2-

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3 years ago

The mass of a solid substance is 21.112 g. If the volume of the solid substance is 19.5 cm3, calculate the density of the substa

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Answer:

ρ = 1.08 g/cm³

Explanation:

Step 1: Given data

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Volume of the substance (V): 19.5 cm³

Step 2: Calculate the density of the substance

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3 years ago

4. If the DNA nitrogen bases were TACCGGAT, how would the other half of

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Answer:

ATGGCCTA

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TACCGGAT

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I hope it helps!

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2 years ago

Which substance is the reducing agent in this reaction? 2KMnO4+3Na2SO3+H2O→2MnO2+3Na2SO4+2KOH

olganol [36]

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3 years ago

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harkovskaia [24]

Answer:

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Explanation:

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3 years ago

Give the half equation to show what happens to oxygen when it is rusting￼

Give the half equation to show what happens to oxygen when it is rusting