Using the potentials (see the table "Redox potentials of hydrogen, oxygen and some metals in different media"), complete the reaction equations (two for each option) and draw up electron-ion schemes for them. For reactions of metals with concentrated H2SO4 and HNO3, take the value of the oxidizing agent potential to be more than 1 V. Estimate the practical stability of metals in this medium.
Al KOH H2O
HNO3diff. Be

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