IYNT 2021, Задачи на турнира — Задача 12. Zinc layers
Problems for the 9th IYNT 2021
Епиграф
Nature cannot be fooled.
Richard Feynman
Main Problems for Science Fight 1
Main Problems for Science Fight 1: problems 1–6.
Main Problems for Science Fight 2
Main Problems for Science Fight 2: problems 7–12.
Problems Invent Yourself for Science Fight 3
Problems Invent Yourself for Science Fight 3: problems 13–17.
Условие
If a copper coin and small granules of zinc are immersed into a solution of zinc sulphate and then heated, a layer of zinc appears on the coin. What is the thickness of the zinc layer? What other metals can be covered with zinc in such an experiment? Investigate and explain the effect.
Решение
Внимание: Непълно решение
Това е открита изследователска задача — официални решения не се публикуват.
Authors and release
The problems are authored by Nikita Chernikov, Alena Kastenka, Dmitri Lissatchenko, Ilya Martchenko, Artem Sukhov, and Evgeny Yunosov. Selected, prepared, and edited by Ilya Martchenko and Evgeny Yunosov. This official set of problems for the 9th IYNT 2021 is approved by General Council of the IYNT and can be used only at the events endorsed by the General Council of the IYNT.
Released in Minsk on August 18, 2020.
Оригинал в Архива: IYNT Problems 2021.pdf