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Hustota vzduchu za normálnych podmienok je 1,29kg/m³. Hustota vzduchu v istom bode nad radiátorom je 1kg/m³. Aká je v danom mieste teplota vzduchu ? Teplota vzduchu za normálnych podmienok je 23°C.
Vypočítajte aké látkové množstvo a koľko gramov medi sa vylúči z roztoku síranu meďnatého ak s ním zreaguje 20 gramov zinku poďla reakcie: Cu(2+) + Zn > Cu + Zn (2+)
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