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Вопрос по химии:
С раствором бромида меди(2) НЕ РЕАГИРУЕТ:
1)Хлор
2)Цинк
3)Нитрат серебра
4)сульфат натрия-
Автор:
bethanyvega
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1)CuBr2+2Cl=CuCl2+2Br
2)CuBr2+Zn=ZnBr2+Cu
3)CuBr2+2AgNO3=Cu(NO3)2+2AgBr
4)CuBr2+Na2SO4=CuSO4+2NaBr(обе соли в конце растворимые)
Ответ:4)сульфат натрия
Еще 4 ненужных тебе вопроса, но это важно для поиска
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Вопрос по математике:
1. Выполните деление:
а) 1 : 0,8; б) 1,48 : 0,4; в) 158,73 : 3,7.
2. Арбуз тяжелее дыни в 4,5 раза. Найдите массу арбуза и массу дыни, если дыня легче арбуза на 8 кг 400 г.
3. Найдите значение выражения
6,56 · 4,36 - 3,36 : (0,736 + 2,464) - 20,0424.
Помогите пожалуйста)-
Ответов: 2
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5 лет назад
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Вопрос по алгебре:
Функцію задано формулою f(x ) = x² + 3 . Знайдіть f(2)-
Ответов: 1
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5 лет назад
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Вопрос по английскому языку:
Learners should use dictionaries or digital on-line tools to check their answers.
Transport
Example: A means of conveying such as a track or a bus
Is a way of working, organizing, or doing something which follows
1. a fixed plan or set of rules.
| 2. To become joined
| 3 A person who is travelling in a vehicle but is not driving it
4. A railroad, especially one operating over short distances
| 5. A a vehicle with four wheels pulled by a horse or horses
The Railways
Many countries have a network of railways to help transport different types of produ
The earliest system was in Ancient Greece in 600 BC. Later rail inks were built to connect s
distances. In the 19" century, this changed very much. Many countries developed their
network. They had private links between different towns with Germany and Britain. Britain
the best links. These links allowed carrying heavy goods such as coal, iron, ore, and w
Building a railway was a hard work for labourers. Railways are very expensive to construc
important to transport raw materials and such goods as textiles quickly and cheaply.
In the early 19" century, the first passengers travelled on the railways with horse-
carriages. From 1840-1850 Britain was connected by railways and used steam engine t
carriages
th
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Ответов: 1
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5 лет назад
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Вопрос по химии:
ПОМОГИТЕ С ЗАДАЧКОЙ ПО ХИМИИ ДАЮ МАКСИМУМ БАЛЛОВ!!!!
Водород объёмом 0,448 л Н2 и 0,448 л O2 взорвали. Определите массу образовавшейся воды и объём газа, который остался в избытке (все объёмы газов измерены при нормальных условиях).-
Ответов: 1
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5 лет назад
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