Can someone explain the steps in this answer?
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What is the name of this topic? The mechanism is looking unfamiliar to me.
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Why is 2.56 being used as mass if the unit looks like density or concentration?
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What's the need for placing a 2 before the Fe?
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Why is the amount of Fe²⁺ in the second titration equal to the amount of Fe²⁺ and Fe³⁺ in the original solution?
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Why is it not 2.00-0.80?
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How is it -1.18V?
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How is it -1.18V?
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Why would E cell being positive make the concentration of the product decrease?
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Why not Cu²⁺?
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How do they know the unit is cm⁻¹?
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Why is the overall charge -2 for a manganate 6 ion but -1 for a manganate 4 ion, when they both look like MnO₄?
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How did they find the total time to be 11s here? I also want to know how they found 1.5s.
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How to know if this question is asking for power in or power out?
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Why does it not work to just use distance÷speed and then speed÷time on this question?
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Why was sin(2x) here substituted with -1 instead of 1? It's asking for maximum.
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How to solve (b)i)?
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How to solve (b)i)?
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Why did they find the value of the coordinates if it's asked to find the equations?
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How did they solve this one? And can the formula I wrote be used here?
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How do you know which one is E(oxidation) and which one is E(reduction)? Aren't they both being reduced?
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Why did they only consider low mass stars for this question?
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Why is k>3.6 instead of <3.6?
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If I use 396.5 and 396.9, I get -3.02×10⁵ ms⁻¹. Would that answer still be okay?
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