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Dobrý deň chcem sa opýtať či to mám dobre
1, 12,4cm
2, 9,61cm2
3, 4,77cm2
4, 4,8cm2
5. 57,66cm2
6, 29cm3
Pri hasení páleného vápna sa spotrebovalo 25 litrov vody (hustota = 1 g . cm-3). Vypočítajte, aké mno~stvo oxidu vápenatého, w = 80 %, potrebujeme na reakciu a aké mno~stvo hydroxidu vápenatého…
Vypočítajte objem, látkové množstvo a hmotnosť acetylénu, ktorý vznikne reakciou 50 g acetylidu vápenatého s vodou, ak výťa~ok reakcie je 75 %. Mr(CaC2) = 64,1; Mr(C2H2) = 26,04 prosím vás, ako sa…
Dobrý večer, potrebovala by som pomôcť s výpočtom tejto úlohy. Vopred ďakujem. Zistite, či sú vektory (4,2,0,2), (2,2,2,1), (1,4,2,3) lineárne závislé nad Z5.
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