Предмет: Химия, автор: foggop

Составьте уравнение реакции между калием и бромом (молекула брома состоит из двух атомов). Пользуясь уравнением, объясните, хватит ли 3 моль брома для взаимодействия с 7 моль калия.

Ответы

Автор ответа: svetka1574

Ответ:

Объяснение:

7 моль Х моль

2K + Br2 = 2KBr

n=2 моль n=1 моль

7 моль К - Х моль Br2

2 моль К - 1 моль Br2

n(Br2) = 7*1 / 2 = 3,5 моль

3 моль Не хватит, нужно 3,5 моль Br2

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