Dobrý deň, chcela som sa opýtať, či by ste mi vedeli poradiť v roztriedeni týchto látok medzi zmesi a chemicky čisté latky (prvky, zlúčeniny).
Ja som to určila takto:
Chem. Čisté latky : NaSO4* 10 H2O (zlúčenina), kvapalný dusík (prvok), sacharóza (zlúčenina),
Zmes: vaječný bielok vo vode (heterogenna),
A potom mi ešte ostala číra voda a roztok KCl, tie neviem kde mám zaradiť 😅
Dakuejm za každú radu .
Are you looking for chémia tutoring? Find the right chémia tutor for online or in-person tutoring near you.
We access the information stored on your device for this website to function properly. This includes, for example, cookies or local browser cache. We use this to store the data necessary for the functioning of the website, data used for analytical purposes, or data stored by third parties.
If this information is essential for the operation of this website, we store it automatically. For everything else, we need your consent, which you can choose to give below. Your consent is valid for 12 months. Should you refuse, we will ask you for consent again in 6 months, but you are free to change your mind at any time. For more information, please see our GDPR and Terms of Use.