Hoàn thành sơ đồ phản ứng điều chế propan-2-ol sau đây (ghi rõ điều kiện phản ứng nếu có).
\[Pentane\overset{(1)}{\rightarrow}propane\overset{(2)}{\rightarrow}A\overset{(3)}{\rightarrow}B\overset{(4)}{\rightarrow}propan - 2 - ol\]
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Learning a foreign language offers numerous benefits in today's interconnected world. Firstly, it enhances cognitive abilities, improving memory, problem-solving skills, and multitasking capabilities. Secondly, it broadens career opportunities, making individuals more competitive in the global job market. Knowing another language opens doors to international companies and collaborations. Thirdly, it fosters cultural understanding and empathy, allowing individuals to connect with people from different backgrounds and appreciate diverse perspectives. Lastly, it enriches travel experiences, enabling more meaningful interactions with locals and a deeper appreciation of foreign cultures. In conclusion, learning a foreign language is a valuable investment that enhances personal, professional, and social aspects of life. (tick cho em với ạ)
You know, we have one world that is divided in two. On one side is people living their life in luxury, and on the other side is people who can’t afford to live, they have no place to live, they have no food to eat and they have no clothes to wear. There are poor people who need much more to be able to live, while other people have enough to survive. As said, poor people have not enough clothes, food, education and health. To be poor means to be deprived economically, politically and socially. They have no possibilities. To help poor people is a good job. To care for poor people and to help them is a real task. The more you give to poor people, the more you give them strength and if you give them one chance or opportunity, you will see a change in your life. Another thing is to show the poor people love and respect. It is another way to help poor people. Here are five ways to help poor people:
Give them support: A good way to help poor people is to give them a hand or a hug. Give them moral support, show love, respect and make them aware that someone really cares about them. Give them economic support: Ordinary people can help poor people by giving economic support. We can help them to solve problem with living. For an example, they need to get meals for their family, a place to live or some clothes. Give them groceries: Give groceries to poor people. They can’t even afford a meal for themselves or their family. Don’t waste food, it is better to give it to those that need it the most. Give them old belongings: To help poor people, is to give them old things, such as old clothes, old furnitures or other old things. Clothes is a big help for poor people especially in the winter season. Education: Knowledge can help the poor people to stand on their own feet. To give them free education can help them to grow as individuals, help them to live a better life, help them to get a job, and to build a career. But it can also help the poor people to develop their skills.
nhớ tag mình nha bạn
có gì sai từ thì sửa lại hộ mình chứ mình viết hơi vội bạn nhé
Đối thoại :Dự đoán thành phố trong tương lai
Anna: What do you think cities will look like in the future?
(Anna: Bạn nghĩ các thành phố trong tương lai sẽ trông như thế nào?)
Tom: I believe cities will have flying cars and smart buildings.
(Tom: Mình tin rằng các thành phố sẽ có ô tô bay và các tòa nhà thông minh.)
Anna: That sounds amazing! Will there still be traffic jams?
(Anna: Nghe thật tuyệt! Liệu vẫn còn tắc đường không?)
Tom: Probably not, because cars will drive themselves and use AI to avoid traffic.
(Tom: Có lẽ không, vì ô tô sẽ tự lái và sử dụng AI để tránh tắc đường.)
Anna: What about pollution? Will cities be cleaner?
(Anna: Còn ô nhiễm thì sao? Các thành phố sẽ sạch hơn chứ?)
Tom: Yes, I think so. We will use renewable energy instead of fossil fuels.
(Tom: Ừ, mình nghĩ vậy. Chúng ta sẽ sử dụng năng lượng tái tạo thay vì nhiên liệu hóa thạch.)
Anna: That’s great! Will there be more green spaces?
(Anna: Thật tuyệt! Liệu sẽ có nhiều không gian xanh hơn không?)
Tom: Definitely! There will be rooftop gardens and vertical forests in buildings.
(Tom: Chắc chắn rồi! Sẽ có các khu vườn trên mái và rừng thẳng đứng trong các tòa nhà.)
Anna: I hope cities will also be safer with better technology.
(Anna: Mình hy vọng các thành phố cũng sẽ an toàn hơn nhờ công nghệ tốt hơn.)
Tom: Of course! AI and smart surveillance will help reduce crime.
(Tom: Tất nhiên! AI và giám sát thông minh sẽ giúp giảm tội phạm.)
Bạn có muốn thêm ý tưởng nào khác không?🚀
Anna: Hey, Jake! Have you ever imagined what cities will look like in the future?
Jake: Yeah! I think future cities will have flying cars and super-fast trains.
Anna: That sounds cool! I believe there will be more green buildings with plants everywhere.
Jake: Definitely! And robots will help people with daily tasks, like cleaning and cooking.
Anna: Yeah, and maybe artificial intelligence will control traffic to reduce congestion.
Jake: That would be amazing! I also think there will be more underground and underwater cities.
Anna: Wow, living underwater would be so exciting! Do you think pollution will still be a problem?
Jake: Hopefully not. I think future cities will use only renewable energy to keep the air clean.
Anna: That would be great! I also imagine smart homes that can change temperature and lighting automatically.
Jake: For sure! The future sounds incredible. I can’t wait to see how technology changes our cities!