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Chemistry, 30.11.2021 14:00 tucecoskun

Hiện tượng nào trong các hiện tượng sau là hiện tượng hóa học? A.
Mảnh giấy bị cắt ra thành nhiều mảnh
B.
Vào mùa hè trời nóng thức ăn bị ôi thiu
C.
Dây sắt bị cắt ra thành từng đoạn
D.
Hiện tượng băng tan

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Hiện tượng nào trong các hiện tượng sau là hiện tượng hóa học? A.
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