Выпишите формулы оксидов из предложенных
соединений: Н 2 CO 3 , Cа(OH) 2 , Nа 2 O , Р 2 O 5 , H 3 РO 4.
koptevartem050
2
28.04.2020 03:32
0
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Na2O - оксид натрия
P2O5 - оксид фосфора