The answer is: <span>supersaturation</span>
Open systems are when matter and energy can freely move in and around the system. Closed Systems is when energy can freely move back and forth between the system but matter can not.
The equation is as below,
<span>5 Ag</span>⁺ (aq) + Mn²⁺ <span>(aq) + 4H</span>₂<span>O (l) → 5Ag (s) + MnO4</span>⁻<span>(aq) + 8H</span>⁺ <span>(aq)
Reduction:
According to eq. Silver is reduced as,
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5 Ag⁺ + 5 e⁻ → 5 Ag
One electron is gained per Ag ion, so 5 Ag ions will gain 5 electrons.
Oxidation:
According to eq. Manganese is Oxidized as,
Mn²⁺ → MnO4⁻
Oxidation number of Mn in MnO₄⁻ is +7, so Mn²⁺ is loosing 5 electrons, Hence,
Mn²⁺ → MnO4⁻ + 5 e⁻
Results:
Hence, 5 moles of electrons are exchanged between oxidizing and reducing agents.
The process that took place is called oxidation or burning where wood was burnt into ashes.
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Explanation:</u></h3>
Wood is an organic compound formed of different types of carbohydrates, proteins and lipids. These components do have carbon oxygen hydrogen as most abundant atoms and also has some amount of nitrogen, phosphorous, and other metal ions like magnesium, calcium etc.
When the logs were burnt, the chemical reaction took place between the atmospheric oxygen and the atoms present in the wood, forming different oxides. As carbon was the most abundant atom present, a huge smoke containing carbon dioxide and carbon monoxide evolved. The hydrogen became the water vapour, and other gases were also formed like nitrogen dioxide, sulphur dioxide etc. These gases went off into atmosphere. The rest that were left behind were mixture of unburnt part of wood as well as the solid metal oxides. There were unburnt particles of carbon mixed with them too.