Родственные вещества для К₂S,запишите с названиями этих веществ.

Пример:


1) Ca⁺²(NO₃)₂⁻ → H⁺¹N⁺⁵O⁻²₂ → N₂;

2) Ca⁺²(NO₃)₂⁻ → Ca⁺²(OH)⁻¹₂ → Ca⁺²O⁻² → Ca

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