True or False. An element's creativity is determined by the number of protons found in an atom of the element.

1 answer:

4 0

The answer is true because u only need the number of protons which is the good thing but it also can be false but put true i promise you well get it right

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In the picture above, which numbered component would be the generator? (Choose the correct number)

vagabundo [1.1K]

Answer:

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Explanation:

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Why is the mixture of the titration of potassium permanganate solution using oxalic acid heated before titration?

alexgriva [62]

Explanation:

During titration of oxalic acid and $KMnO_4$ in acid medium to reaction is extremely slow. Since $KMnO_4$ is acting as a self indicator the colour disappears after less than 30s even after approaching equivalent point. So the reaction mixture is heated to approximately 70– $80^0 C$ (just before it starts boiling) and the titration is started. This helps in initiating the reaction via supplying the necessary activation energy of the reaction. Secondly the heat helps to decompose $[Mn(C_2O_4)^3]^{-3}$ complex which forms as a result of local excess of $KMnO_4$ .the complex is unstable above $60^0C$ and the $Mn^{+2}$ formed as a result catalyses the rest of the reaction. Thirdly the temp should never exceed the range given as oxalic acid will decompose above this temp to $Co_2$