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aký vzorec je na:
chlórnan železitý
chlorečnan zinočnatý
dusičnan bóritý
chlorečnan kobaltitý
kremičitan strieborný
ďakujem vopred za odpoveď
prosim o pomoc aky je vzorec na tieto kyseliny : - kyselina trihydrogénboritá - kys. heptaoxodifosforečná - kys. hexaoxojodistá - kys. heptaoxodisírová ďakujeeem
Dobrý večer, prosím Vás pekne, vedel by mi niekto poradiť s touto otázkou? Opíš vonkajšiu koncepciu lyrického diela. Veľmi pekne ďakujem
Dobrý deň, prosím o pomoc: 1. Vypočítajte koľko gramov N a O obsahuje 500 g kyseliny dusnej. 2. Vypočítajte koľko g horčíka je obsiahnutého v 250 g oxidu horečnatého. 3. Vypočítajte koľko % vody…
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