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BÀI TẬP TRẮC NGHIỆM HÓA ĐẠI CƯƠNG VÀ VÔ CƠ CẨM NANG DÙNG LUYỆN THI THPTQG CHẤT LƯỢNG CAO (COLOR BOOK)

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7 (B.07 – 285): 2O 3 và m gam Al<br />

V lít khí H 2 O = 16, Al = 27, Cr = 52)<br />

(A) 7,84. (B) 4,48. (C) 3,36. (D) 10,08.<br />

8 2O 3<br />

ng nhau.<br />

ãng).<br />

(A) 0,9. (B) 1,3. (C) 0,5. (D) 1,5.<br />

4<br />

377

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