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demidov200012
@demidov200012
July 2023
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СРОЧНО ДОПОМОЖІТЬ!!!!!!!!!!!! ТРЕБА РОЗПИСАТИ!!!!!!
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unezhewaoxnw6u
Объяснение:
2Са + О2 = 2СаО
4Ag + O2 = 2Ag2O.
2Zn + О2 = 2ZnО
4B + 3О2 = 2B2O3
S + О2 = SО2
4As + 5О2 = 2As2O5
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Объяснение: