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Dobrý deň, potreboval by som pomôcť s touto úlohou.
V daných sústavách určte počet fáz a zložiek:
a) roztok jódu v benzéne
b) suspenzia hydroxidu železitého vo vode
Dobrý deň, chcela by som sa spýtať čo je to vlastne detský hrdina v literatúre, aké je prostredie a čo je hlavná myšlienka týchto príbehov. Ďakujem
Dobrý deň, chcela som sa opýtať či by mi nevedel niekto poradiť s reakciou a opisom deja ako vznikol hasiaci prístroj v tomto pokuse (čo s čím reagovalo)… Vopred ďakujem Pomôcky: frakčná banka,…
Leo nazbiera za 45 min pol vedierka malín, Ela za hodinu celé vedro. Koľko minút by trvalo naplnenie jedného vedra ak by obe deti pracovali spoločne?
doučma.sk
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