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Hóa 8

Created by

nguyenvinh89

Hóa học
Hóa trị
Age 8-9
level: Lớp 8
Vietnamese

Author's Instructions

Tìm hóa trị và lập CTHH

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Hóa 8

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Created by

nguyenvinh89

Hóa học
Hóa trị
Age 8-9
level: Lớp 8
Vietnamese

Author's Instructions

Tìm hóa trị và lập CTHH

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