... Любая химически и физически гомогенная смесь еще двух веществ называется раствором. Можно иметь растворы твердых веществ в жидкостях, жидкости в жидкостях, газы в жидкостях, твердые вещества в твердых телах и т. Д. В зависимости от размера диспергированных частиц мы распознаем истинные растворы, коллоидные растворы и суспензии. Если сахар растворяется в воде и конечная сахарная частица имеет молекулярные размеры, то образуется истинный раствор. С другой стороны, если очень тонкий песок смешать с водой, состоящей из множества молекул, то образуется коллоидный раствор. С фармацевтической точки зрения растворы твердых веществ в жидкостях имеют наибольшее значение. Степень растворимости разных веществ различна, но она имеет постоянное значение при постоянной температуре.
2). A city is a large human settlement. It can be defined as a permanent and densely settled place with administratively defined boundaries whose members work primarily on non-agricultural tasks. Cities generally have extensive systems for housing, transportation, sanitation, utilities, land use, and communication.
3.In addition to serving as a site for royal coronations and burials, Westminster Abbey has famously been the location for 17 royal weddings—including the 2011 marriage of Prince William to Catherine Middleton
4.Buckingham Palace has served as the official London residence of the UK's sovereigns since 1837 and today is the administrative headquarters of the Monarch. Although in use for the many official events and receptions held by The Queen, the State Rooms at Buckingham Palace are open to visitors every summer.
5.The West End is the richest and most beautiful part of London. It's the symbol of wealth and luxury. The best hotels, shops, restaurants, clubs, and theatres are situated there.
6.The poorest statistical area in London; Barking, Dagenham and Havering, has an average disposable income of £16,801 per head – two and a half times poorer than the richest area in the capital.
7.The UK has been described as a "cultural superpower", and London has been described as a world cultural capital.
West Asian and African elephants live in the jungle. Some of the animals work for people because they can lift and carry heavy objects. All elephants have endurance for walking long distances, but not for running. In eastern and southern Africa is often their usual pastures dry up for months. Elephants have long way to go before they find grass and water. Hungry elephants can walk more than 30 kilometers in one day. They never forget the place where there is water. They can drink about 200 liters of water every day and eat 100 kilograms of food
2). A city is a large human settlement. It can be defined as a permanent and densely settled place with administratively defined boundaries whose members work primarily on non-agricultural tasks. Cities generally have extensive systems for housing, transportation, sanitation, utilities, land use, and communication.
3.In addition to serving as a site for royal coronations and burials, Westminster Abbey has famously been the location for 17 royal weddings—including the 2011 marriage of Prince William to Catherine Middleton
4.Buckingham Palace has served as the official London residence of the UK's sovereigns since 1837 and today is the administrative headquarters of the Monarch. Although in use for the many official events and receptions held by The Queen, the State Rooms at Buckingham Palace are open to visitors every summer.
5.The West End is the richest and most beautiful part of London. It's the symbol of wealth and luxury. The best hotels, shops, restaurants, clubs, and theatres are situated there.
6.The poorest statistical area in London; Barking, Dagenham and Havering, has an average disposable income of £16,801 per head – two and a half times poorer than the richest area in the capital.
7.The UK has been described as a "cultural superpower", and London has been described as a world cultural capital.