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a) 2 Ag + 2HNO3 → AgNO3 + H2
b) CaO + H2O → Ca (OH)2
c) 2 KOH + H2SO4 → K2SO4 + 2 H2O
d) CaCO3 → CaO + CO2
e) N2 + 3H2 → 2 NH3
Dobrý deň, prosím, ako vypočítať tieto príklady? ďakujem. :) 1. Na aké číslo treba zmeniť číslo 4 medzi číslami 4, 5, 7, 1, 0,9, 7, 8, -3, 5 aby sa aritmetický priemer týchto čísel zväčšil o 1,25? …
Dobrý, chcem sa opýtať ako modelovať zub na prijmačky som v koncoch a netuším ako to robiť. Nejaké rady? Budem vďačná za všetko.
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