phucnguyen1967
30.12.2019 •
Chemistry
Which of these redox reactions is spontaneous as written?
ni + mg2+ → ni2+ + mg
al + fe3+ → al3+ + fe
hg + al3+ → hg2+ + al
zn + k+ → zn2+ + k
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Ответ:
The answer to your question is: Uranium.
Explanation:
Elements of the f-block are the elements of the inert earth transition metals. They the located in 2 rows beow the other elements in the periodic table. They included lathanides and actinides.
Oxygen belongs to the p-block, so it is not oxygen the answer.
Iron belongs to the d-block. This is incorrect.
Argon belongs to the p- block, this option is incorrect.
Uranium belongs to the f-block.