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Решите уравнение реакции взаимодействия следующих веществ при нагревании а) алюминия с разбавленной серной кислотой б) серебра с концентрированной серной кислотой
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Предмет:
Химия -
Автор:
brennacampos - 6 лет назад
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Ответы 2
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Здравствуйте! Нужна ваша помощь по химии! Вот ссылка на задание : http://znanija.com/task/14466671
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Автор:
booker - 6 лет назад
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0
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2Al + 3H2SO4 –> Al2(SO4)3 +3 H2. 2Ag +2 k. H2SO4 –> Ag2SO4 + SO2 +2 H2O
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Автор:
georgereese - 6 лет назад
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0
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утерждение правдиво или лживо из текста
a. Americans eat more fruit than any other food
b. Cocoa drinks are good for your health.
c. People are buying more soy drinks.
d. People are buying less pasta.
e. Nuts are good for you.
Most people believe that health is very important and, because of this, many are trying to eat more healthily. For example people in the UK are eating less salt and more low fat margarine and milk fruit is now America's second-favorite snack and Japan is currently promoting cocoa because it is a healthy
Taking our diet more seriously
Many people believe that health is very important and, because of this, many are trying to eat more healthily. For example, people in the UK are eating less salt and more low fat margarine and milk; fruit is now America’s favourite snack and Japan is currently promoting cocoa because it is healthy alternative to soft drinks like Coca Cola. These changes in eating habits are also having an effect on the food market. Global sales are increasing for soy drinks and drinkable yoghurts more than any other food and sales of bread, pasta, and cereals are growing much more slowly. People are also becoming interested in fresh fruit and vegetables and ‘farmers’ markets’ are getting more popular throughout Europe. When they can, people often opt for ‘natural goodness’, and they are buying more products that are healthy, like fruit, salads, and nuts. They are also buying products that help to protect environment, like organic vegetables. So it’s clear that things in the food world will never be the same again.-
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