33 Bài tập ôn thi học kì 2 môn Hóa lớp 10 năm 2020 - 2021 THPT Nguyễn Chí Thanh chọn lọc
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THPT Nguyễn Chí Thanh
Tổ Hóa học
HỖ TRỢ ÔN TẬP THI HỌC KỲ II
Môn : Hóa Học - KHỐI 10
Câu 1: Viết phương trình hóa học thực hiện biến đổi sau, ghi rõ điều kiện phản ứng (nếu có):
a) FeS2 ( ) 1 SO2 ( ) 2 SO3 ( ) 3 H2SO4 ( ) 4 Fe2(SO4)3 ( ) 5 Fe(OH)3 ( ) 6 Fe2(SO4)3 ( ) 7 FeCl3 ( ) 8 Fe(NO3)3
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b) KMnO4 ( ) 1 O2 ( ) 2 SO2 ( ) 3 H2SO4
(4)* H2S ( ) 5 SO2
(6) S ( ) 7 ZnS ( ) 8 H2S ( ) 9 Na2S
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c) S ( ) 1 FeS ( )* 2 SO2 ( ) 3 SO3 ( ) 4 H2SO4 ( ) 5 CuSO4 ( ) 6 CuS ( )* 7 SO2 ( ) 8 S ( ) 9 H2S
( ) 10 SO2 ( ) 11 Na2SO3 ( ) 12 SO2 ( ) 13 NaHSO3 ( ) 14 Na2SO4 ( ) 15 NaCl
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