cho hh gồm h2 , CO,NH3 có tỉ khối vs h2 =6,815 tính % V từng khí , %kl, biết số mol H2 = 3 lần số mol CO

Mng làm hộ mik bài này với ạ. Mik cảm oenn

mọi người cứu em với đến 30 phải nộp rồi ạ, em cần gấp, hứa cho ctlhn

Giải chi tiết chút ạ, bài toán về hỗn hợp oxit tác dụng với HNO3.

The Legend of Robin Hood Robin Hood was born near the end of the 12th century. His real name was Robert. He was the son of the Earl of Hautingdon. At that time, England had many problems. The King was cruel and greedy. His men were arrogant and brutal. The poor people of England suffered a lot. Many families died of hunger! One day, the cruel Sheriff of Nottingham killed Robin's father, and took away his lands. Young Robin lost his father, his home, his lands and all his possessions.He escaped to Sherwood Forest with his loyal servants. They decided to live as free men in the forest. They didn't want to be slaves of King John. However, the King considered them outlaws. Robin and the outlaws lived in caverns in the forest. They are wore green clothes and carried bows and arrows. The outlaws were excellent archers. Robin Hood became the best archer in the region. Some year passed, and there were more than 200 outlaws living in Sherwood Forest. Robin Hood was the hero of the poor. He continued robbing the rich to give to the poor. The Sheriff of Nottingham sent an army of soldiers to Sherwood Forest to capture Robin Hood. But Robin and his outlaws were in the trees. They killed all the soldiers except one. Robin Hood's fame was everywhere. The people called him Saint Robin, and Robin, Sheriff of Sherwood Forest. A lot of new outlaws joined Robin Hood. They were loyal to him and followed him everywhere. ? What was the England King at the time like ? Who did live with in Sherwood Forest ? Why did Robin Hood and his sevants decide to live in the forest ? What did the people call Robin Hood

Cứu với các bác ơi Nhanh lên nha

`-x^2 +x` Chứng minh luôn âm luôn dương NẾU KHÔNG DC THÌ CM MIN MAX

Task 1. Look at the pictures and complete the instructions with the verbs in the box. (Xem những bức hình và hoàn thành những hướng dẫn với những động từ trong khung.) heat pour fold beat serve 1.______the eggs together with salt and pepper. 2. _____the frying pan over a high heat and add cooking oil. 3._______ the egg mixture into the pan. 4. _______the omelette in half 5.________ with some vegetables.

Phủ định của mệnh đề: “Có ít nhất một số vô tỷ là số thập phân vô hạn tuần hoàn” là mệnh đề nào sau đây: A. Mọi số vô tỷ đều là số thập phân vô hạn tuần hoàn. B. Có ít nhất một số vô tỷ là số thập phân vô hạn không tuần hoàn. C. Mọi số vô tỷ đều là số thập phân vô hạn không tuần hoàn. D. Mọi số vô tỷ đều là số thập phân tuần hoàn.

Cho tập A = {x ∈ R : x < 3} được viết lại dưới dạng là: A. (-∞; 3). B. (-∞; 3]. C. [ 3; +∞). D. (3; +∞).