Cho 20,4 g hỗn hợp X gồm Zn,Fe,Al tác dụng với dung dịch chứa HCl và H2SO4 loãng dư thu được 10,08 lít khí H2.Mặt khác 0,2 mol hỗn hợp X tác dụng vừa đủ với 6,16 lít khí Cl2.Các khí đi ở đktc .Xác định khối lượng mỗi kim loại trong 20,4 g hỗn hợp X? Giúp mik với,giải chi tiết giúp mik.mik sẽ vote 5*.

Mọi người giúp mik câu C với ạ ( mỗi câu C )nhé

giúp em với ạ,hứa cho 5* và cảm ơn (ai nhanh nhất em cho trả lời hay nhất ạ )

Câu 1 là gì vậy mn:))))))))))))))))))))))

Bài 14. Chuyển các câu sau từ thì QKĐ thành thì HTHT sao cho có nghĩa. 1. The last time I played the violin was 2 years ago. 2. The last time the team won the prize was a long time ago. 3. She last did charity work 2 years ago. 4. The last time I wrote a letter was 5 years ago. 5. My father stopped smoking in 2014. 6. I last donated my blood 7 months ago. 7. When did you start doing charitable work? 8. The last time she involved in community service was 2 month ago. 9. She said: " I begin working as an activist when I was 20 years old." 10. My best friend gave up eating fast food last year.

Một con dốc có độ cao 100m.Đoạn đường lên dốc tạo mặt đất 12 độ.Đoạn đường xuống dốc tạo phương thẳng đứng với góc 75 độ . Tính chiều cao con dốc

Tìm x thuộc N, biết 2448:[119-(x-6)]=24 giúp mik vs

Finish the sentences 1I have already ....................................................... 2 She has ...........................................................

Question 70-77: Finish the second sentence so that it has the same meaning as the first: 70. It was such an interesting film that we watched it several times  The film……………………………………………………………………………………………………………………,………………………… 71. The football match was won by Manchester United  Manchester…………………………………………………………………………………………………………………………………………. 72. Peter was too ill to get up.  Peter was so………………………………………………………………………………………………………………………………………… 73. Her father asked her if she would go to the cinema with her friends.  Her father asked her:”…………………………… …………………………………………………………………………………………….” 74. Parents ought to send their children to school.  Children……………………………………………………………………………………………………………………………………………….. 75. People think that doing morning exercises is good for health  It is …………………………………………………………………………………………………………………………………………………….. 76. Tom is not as tall as Peter.  Peter…………………………………………………………………………………………………………………………………………………….. 77. Every day thousands of trees are cut down in the world.  Every day people…………………………………………………………………………………………….……………………………………

Làm hộ tui vs đặc biệt là phần b ạ