April 2022 1 9 Report
W miejsce kropek wpisz symbole lub wzory, dobierz współczynniki.
...... + O2 → ... CO
... S + ... O2 → ... SO2
... Mg + ...... → ... MgO
... Fe + ...... → ... FeCl3
... Cl + ... O2 → ... Cl2O7
... K + ... O2 → ... K2O
... H2 + ... O2 → ... H2O​

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