June 2022 2 37 Report
Формулы щелочи, амфотерного оксида, кислоты соответственно:
1)KOH, P2O5, H2SO4
2)Ca(OH)2, K2O, H2CO3
3)NaOH , Al2O3, K2SiO3
4)LiOH, Al2O3, HNO3
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