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Dobrý deň ja by som potrebovala aké sú slovíčka zo since alebo for
Dobrý deň.Nevie niekto ako to mám vypočítať? Vopred ďakujem. Osem brigádnikov zabalí za päť hodín 240 krabíc. Koľko krabíc zabalia dvanásti brigádnici za tri hodiny?
Dobrý deň, prosím o pomoc s touto otázkou: Keď zreaguje 1 mol Ca(OH)2 a 1 mol H3PO4,vznikne: a) Ca(H2PO4)2 b) CaHPO4 c) Ca2H2PO4 d) Ca3(PO4)2 a zároveň aj s touto, ktorá je podobného rázu: Keď…
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