[\u0110\u1ec0 KI\u1ec2M TRA H\u1eccC K\u00cc H\u00d3A 8] - \u0111\u00e3 ch\u1ec9nh.docx - H\u1ecd v\u00e0 t\u00ean:\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026 L\u1edbp 8\u2026 \u0110\u1ec1 thi h\u00f3a 8

[ĐỀ KIỂM TRA HỌC KÌ HÓA 8] - đã chỉnh.docx -...

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H và tên:………………………………………….. L p: 8…. Đ thi hóa 8 h c kì 1 – Th i gian: 45 phút Đi m L i phê c a giáo viên I. TR C NGHI M : Ch n m t trong nh ng ch cái A, B, C, D cho đúng nh t. Câu 1: Hóa tr c a Fe trong hai h p ch t FeCl 3 , FeCl 2 là: Câu 2: M t kim lo i M t o mu i sunfat M 2 (SO 4 ) 3 . Mu i nitrat c a kim lo i M là: A. M(NO 3 ) 3 B. M 2 (NO 3 ) 2 C. MNO 3 D. M 2 NO 3 II. T LU N Câu 1: Cân b ng các ph ng trình ph n ng hóa h c sau: ươ 2 3 ) t a Al S Al S   3 3 ) Fe OH NaC b NaOH FeCl l 2 2 ) c K H O KOH H 2 3 ) t d Fe Cl FeCl   Câu 2: Tính kh i l ng mol c a các ch t sau: Al ượ 2 O 3 , Mg 3 (PO 4 ) 2 . Câu 3: Tính thành ph n % (theo kh i l ng) các nguyên t hóa h c có trong h p ch t sau: ượ Fe 2 O 3 . (Cho bi t H=1, O=16, Al=27, Ca=40, P=31, Mg=24, S=32, C=12, Fe=56). ế Bài làm ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ………………………………………………………………………………………………………
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