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Số lượng câu trả lời 832
Điểm GP 201
Điểm SP 788

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Thanh Trà
Nguyễn Huy Tú
Hiiiii~

Câu trả lời:

Đủ dài chưa nà :)))

Though physically small, Singapore is an economic giant. It has been Southeast Asia's most modern city for over a century. The city blends Malay, Chinese, Arab, Indian and English cultures and religions. Its unique ethnic tapestry affords visitors a wide array of sightseeing and culinary opportunities from which to choose. A full calendar of traditional festivals and holidays celebrated throughout the year adds to its cultural appeal. In addition, Singapore offers luxury hotels, delectable cuisine and great shopping! The island nation of the Republic of Singapore lies one degree north of the Equator in Southern Asia. The country includes the island of Singapore and 58 or so smaller islands. Because of its efficient and determined government, Singapore has become a flourishing country that excels in trade and tourism and is a model to developing nations. The capital city, also called Singapore, covers about a third of the area of the main island.

Located at the tip of the Malay Peninsula, Singapore's tropical climate welcomes both leisure and business travelers year round. The island republic's excellent infrastructure enables visitors to enjoy its many sites and attractions in a safe, clean and green environment. Award winning Changi Airport provides airlinks to major cities around the world. The train and subway systems are clean, fast and efficient. In addition, its state-of-the-art cruise terminal has established Singapore as one of the premier cruising centers of South East Asia and an exciting port of call on any Asian cruise itinerary.

In the city, there is no need for a car. Public transportation is excellent and walking is a good way to explore the city . All major attractions are also accessible by tour bus. Since the city is only 60 miles (100k) from the equator, the tropical temperatures do not vary much. Rainfall is fairly evenly distributed through the year. No matter when you choose to visit, warm weather will be abundantly available. The visitor is struck immediately by Singapore's abundance of parks, nature reserves, and lush, tropical greenery.

Singapore's progress over the past three decades has been remarkable, yet the island has not been overwhelmed by development. Visitors will discover a wealth of historical treasures from the past, in the beauty of older buildings, values and traditions that have survived in the face of profound social and geographical change.

Lacking any noteworthy natural resources, Singapore's early prosperity was based on a vigorous free trade policy, put in place in 1819 when Sir Stamford Raffles first established it as a British trading post. Later, mass industrialization bolstered the economy, and today the state boasts the world's second busiest port after Rotterdam, minimal unemployment, and a super efficient infrastructure. Almost the entire population lives in upscale new apartments, and the average per capita income is over US$12,000. Singapore is a clean, safe place to visit, its amenities are second to none and its public places are smoke-free and hygienic.

Forming the core of downtown Singapore is the Colonial District. Each surrounding enclave has its own distinct flavor, from the aromatic spice stores of Little India, to the tumbledown backstreets of Chinatown, where it is still possible to find calligraphers and fortune tellers, or the Arab Quarter, whose cluttered stores sell fine cloths and silks.

North of the city, are two nature preserves, Bukit Timah and the Central Catchment Area, along with the splendid Singapore Zoological Gardens. The east coast features good seafood restaurants set on long stretches of sandy beach. In addition there are over fifty islands and islets within Singaporean waters, all of which can be reached with varying degrees of ease. Day trips are popular to Sentosa, the island amusement arcade which is linked to the south coast by a short causeway and cable car. Music, theater, nightlife: all are abundant in this remarkable city. Singapore used to be considered a "stop over" on the way to larger Asian cities. This is no longer true! Visitors seek out Singapore for business and finance and also for a fascinating and satisfying vacation for the whole family.

Singapore is both an island and a country, but perhaps its best description is that of city-state. Like the great city-states of the past, it offers civilization and order in the highest degree. Its combination of Western-style development and Eastern-style calm seems to present the best of both hemispheres: It's a modern metropolis where you feel safe walking the streets, and it's an Asian business center that's a model of efficiency. Singapore is also a multicultural city, and close to one-quarter of its population are expatriates or foreign workers from all over the world. Known for its desire to become the technology hub of Asia, Singapore is the most wired country in the region.

Singapore shares another trait with historical city-states: Its authorities strongly believe that they can safeguard the status quo with regulations against almost anything and everything that - in their view - could possibly upset the sense of tranquility. In reality, visitors will find the place is not as restrictive as the long lists of hefty fines for such things as littering and jaywalking suggest. Some visitors to Singapore leave singing the praises of a society that "works," while others feel the government's near-compulsive fixation on cleanliness and order makes Singapore sterile in every sense of the word.

:))

Câu trả lời:

Oxi:
a. Tính chất vật lí
Là chất khí không màu, không mùi, nặng hơn không khí. Ít tan trong nước.
b. Tính chất hóa học
Là một phi kim hoạt động (do có độ âm điện lớn 3,44 chỉ kém F).
* Tác dụng với kim loại
Tác dụng với hầu hết kim loại (trừ Ag, Au và Pt) → oxit. Các phản ứng thường xảy ra ở nhiệt độ cao.
2Mg + O2 → 2MgO
3Fe + 2O2 → Fe3O4 (thường tạo hỗn hợp 4 chất rắn)
* Tác dụng với phi kim
- Oxi phản ứng với hầu hết các phi kim (trừ halogen) tạo thành oxit axit hoặc oxit không tạo muối.
- Các phản ứng thường xảy ra ở nhiệt độ cao.
S + O2 → SO2
C + O2 → CO2
2C + O2 → 2CO
N2 + O2 → 2NO (30000C, có tia lửa điện)
* Tác dụng với hợp chất có tính khử
2CO + O2 → 2CO2
4FeS2 + 11O2 → 2Fe2O3 + 8SO2
c) Ứng dụng của oxi
- Có vai trò quyết định đối với sự sống của người và động vật. Oxi không thể thiếu đối với quá trình hô hấp. - Oxi cũng được dùng nhiều trong công nghiệp hóa chất, luyện thép, y khoa, hàn cắt kim loại...
d) Phương pháp điều chế oxi :
* Trong phòng thí nghiệm.
2KClO3 t0⟶⟶t0 2KCl + 3O2
2KMnO­4 t0⟶⟶t0 K2MnO2 + MnO2 + O2
*Trong công nghiệp.
- Từ không khí : Chưng cất phân đoạn không khí lỏng.
- Từ nước : Điện phân nước
2H2O (điện phân) --> 2H2 + O2

Vai trò của oxi :

Oxi duy trì sự sống và sự cháy.

Câu trả lời:

Singapore

Singapore came into being in 1963. It is a country which is often referred to as the hub of all South Asian countries. It is an Island located in South East Asia and is one of the most spectacular places. The government of Singapore had to struggle hard in the early days because there was not much to work with. The people all belonged from different backgrounds and most of them were not educated.

There was a domestic market which had to be expanded in order for the country to survive. The official language was declared English later on and eventually things started to get better. Now Singapore is a top tourist destination. The education being provided is top notch and the people have grown from laborers to office workers doing white color jobs.

Life in Singapore

Life in Singapore is just like life on any other island. The people are extremely cooperative and nice. Being from different cultures and backgrounds, they know how it is to live together and welcome people from all around the world to visit their country.

If you visit the place you will find that it is full of activity, bright and is filled the beautiful smell of different kinds of foods. Singapore is most notable for its variety of food. You can find cuisines of any country, city or place. From Chinese to typical Indian food, Singapore offers it all. Even the local vendors who sell food on the corners of the streets add a mixture of spices which are simply to die for.

Once you are done with your shopping and are tired and just want to eat something good, you can buy anything from these vendors and get back your energy in no time. The country is filled with beautiful buildings and architecture which is a mixture of modern and traditional art. At night, Singapore is a sight to behold.

The lights are reflected in the river and the sky turns a bright red. The buildings are decorated with colorful lights which shine bright to give them a stunning overall look. The people who work all day long get to enjoy this nightlife and often spend dinner time in different restaurants.

The people are not always working. They have vacations at different times of the year and also enjoy the different local and international festivals that are being held throughout the year. If you cannot decide where to spend your next new years eve, then choose Singapore. The best fireworks display coupled with an awesome parade is all you need.

Weather in Singapore

Singapore has tropical climate as it has a rainforest. It is mostly warm and wet throughout the year. There are no set seasons. The humidity can be high and rain can fall whenever it wants to but this rain does not last for long periods and often refreshes the land.

The people have to dress according to the climate and so light cloth es are worn.