Koliko grama kalijuma je izreagovalo?

Kalijum je reagovao sa vodom, nastali su kalijum-hidroksid i vodonik (koji se odmah pali, li to sada nije bitno). Napisi reakciju i uradi ovaj zadatak-ovo je tipicna stehiometrija.

Pozdrav! :)

"A new scientific truth does not triumph by convincing opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it" Max Planck

K + H₂O = KOH + 1/2H₂

39 g K : 56 g KOH = x g K : 11.2 g KOH

x = 7.8 g K

@milchamp Nije potrebno da resavas svaki zadatak, pogotovo ne ove lake. Nama nije cilj da mi nekome samo resimo zadatak da on moze da prepise, vec zelimo da on sam ucestvuje u procesu resavanja, a time i nauci kako se on resava.

Pozdrav! :)

"A new scientific truth does not triumph by convincing opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it" Max Planck