<h3>
Answer:</h3>
An electric current is used to decompose a substance.
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Explanation:</h3>
Concept tested: Electrolysis
We can answer the question by asking ourselves important questions
First; What is electrolysis?
- Electrolysis refers to the process through which molten or aqueous compound known as electrolytes are decomposed by passing electric current through them.
Second; What are electrolytes?
- Electrolytes are substances in either molten or aqueous form and are good conductors of electric current.
- Electrolytes are good conductors of electric current due to the presence of mobile ions.
Third: What happens during electrolysis?
- Electrolytes are therefore decomposed by passing electric current through them resulting to formation of new elements or molecules.
- For example, when molten sodium chloride is decomposed by passing electric current through it, sodium metal is released at the cathode while chlorine is released at the anode.
<u>Answer:</u> The amount of sodium thiosulfate required is moles
<u>Explanation:</u>
Moles of solution given = 0.0000524 moles
The chemical equation for the reaction of potassium iodate and sodium thiosulfate follows:
By Stoichiometry of the reaction:
2 moles of potassium iodate reacts with 1 mole of sodium thiosulfate
So, 0.0000524 moles of potassium iodate will react with = of sodium thiosulfate
Hence, the amount of sodium thiosulfate required is moles
They all take nutrients out of the soil which leaves the soil infertile
MgSO4 + 2NaOH —> Mg(OH)2 + Na2SO4