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Ответ

Ответ дан
ysminadr55

Ответ:

...............

Объяснение:

B2(+3)o3(-2) - оксид бора

Cu(+1)2S(-2)- сульфат меди 1

CU(+2)S(-2) - сульфат меди

B4(+3)C3(-4)- корбид бора

k(+1)3N(-3)- нитрид калия

O(+2)F2(-1)- фторид кислорода 2

H(+1)F(-1)-плавиковая кислота

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