Предмет: Химия, автор: annamihalcuk358

Хімічний елементрозміщений у головній підгрупі 4 групи періодичної системи хімічних елементів. Відносна молекулярна маса його леткої сполуки з Гідрогеном становлять 81. Визначити хімічний елемент.
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Полное розяснение!

Ответы

Автор ответа: lizpp

0

Ответ:

Ge-герундій

Більш наближена до відповіді відносна молекулярна маса у GeH4.

Mr(GeH4)= 73+1*4=73+4=77

Объяснение:

Можливо, умова записана неправильно.

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