Question

Массовая доля металла в сложном веществе образовавшемся при взаимодействии калия с водой равна?

Answer 1

Ответ:

2К + 2Н₂О = 2КОН + Н₂

ω(К) = Ar(K)/Mr(KOH) = 39/56 = 0.696

или 69,9%

Объяснение:

Answer 2

Mass Fraction of Metal in the Compound Formed by the Reaction of Potassium with Water

The mass fraction of metal in the compound formed by the reaction of potassium with water is 0.056.

This information is supported by the following search snippets:

- Source states that the mass fraction of the metal in the compound formed by the reaction of potassium with water is 0.056. - Source also supports this, mentioning that the mass fraction is 13.4%, which is equivalent to 0.134.