Faith

bài 1 Nếu cho 1 mol mỗi chất: CaOCl 2 , KMnO 4 , K 2 Cr 2 O 7 , MnO 2 lần lượt phản ứng với lượng dư dung dịch HCl đặc, chất tạo ra lượng khí Cl 2 nhi

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bài 1 Nếu cho 1 mol mỗi chất: CaOCl 2 , KMnO 4 , K 2 Cr 2 O 7 , MnO 2 lần lượt phản ứng với lượng dư dung dịch HCl đặc, chất tạo ra lượng khí Cl 2 nhiều nhất là A. KMnO 4 . B. CaOCl 2 . C. K 2 … Đọc tiếp

VI. Complete the dialogue with the comparative form of the adjectives in brackets. David: How do you like living in the big city? Maria: There are

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VI. Complete the dialogue with the comparative form of the adjectives in brackets. David: How do you like living in the big city? Maria: There are many things that are (1) ______________ (good) than living in the country! David: Can you give me some examples? Maria: Well, it certainly is (2) ______________ (interesting) than the … Đọc tiếp

After John’s arrival to Cannada, he phoned his parents. => After John… After many years of hard work, Mr. Brown retired. => After Mr. Brown… First

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After John’s arrival to Cannada, he phoned his parents. => After John… After many years of hard work, Mr. Brown retired. => After Mr. Brown… First Linda checked all spelling mistakes. Then she decided to hand in her essay. => By the time… During the lesson, my phone rang. => While I… You are now … Đọc tiếp