Prosím ak by to niekto vedel nie som si istý s touto úlohou (9uloha). V šalke s 200g čaju je rozpustená 1 lyžička (5g) cukru. Vypočítajte hmotnostný zlomok cukru v čaji.
Aký je rozdiel medzi makromolekulou a kryštálovou sústavou, ako pr. možno uviesť diamant - je to kryštál, no v podstate aj jedna veľká makromolekula z atómov s kovalentnou väzbou.
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