Ti H2SO4 H2O2. #chemistry #science #experiment #chemistrymagic | ChemClub
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Tiến hành thí nghiệm theo các bước sau: Bước 1: Lấy hai ống nghiệm sạch, cho 2 mL dung dịch H2SO4 1M vào ống (1), cho 2 mL dung dịch H2SO4 1M và 2-3 giọt dung dịch CuSO4 vào ống (2). Bước 2: Cho đồng thời vào hai ống, mỗi ống một đinh sắt có kích thước như nhau đã được làm sạch bề mặt rồi để yên một thời gian. Cho các phát biểu sau: (1) Ở bước 2, tốc độ thoát khí ở ống (2) nhanh hơn ở ống (1). (2) Ở bước 2, ống (1) chỉ xảy ra ăn mòn hoá học, ống (2) chỉ xảy ra ăn mòn điện hoá. (3) Ở bước 2, cả h
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