Предмет: Химия, автор: jeremy1clarcston

1) При окислении в лаборатории 34кг амиака было получено 54 кг оксида азота (II).Вычислите массовую долю выходе оксида азота (II) В процентах от теоретически возможного.
2) Чему равна масса амиака,необходимого для получения 6.3т азотистой кислоты,если потери в производстве составляют 5%.

Ответы

Автор ответа: svetok555
0
масса амиака равна 145 кг
Автор ответа: LoverMary
0
(32-h2o:2):2 все же оч просто
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         Climate change is one of the most worrying things for our planet. Many politicians and scientists say it is the biggest danger we face. I read almost every day that climate change is changing the Earth forever. Many species of animal, fish, insect, frog, etc. are dying. The ice caps in the Arctic and Antarctica are melting. Our weather is changing so places are getting warmer, or colder, or are having more and stronger hurricanes. We all need to do our bit so that climate change does not destroy us. It’s important to cut down on things that produce greenhouse gasses. These warm the planet and change the climate. Doing simple things like turning off lights and recycling paper all help.

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            1.What is this text about?

weather

atmosphere change

actions of people

climate

Politicians and scientists say that:

it is the biggest danger we face

carbon dioxide

oxygen

no answer

What is the result of climate changing?

Driving to work

Dying of animals

Using public transport

Getting warmer

What do we need do?

If planet gets warmer, then polar bears will become extinct

climate change does not destroy us

If planet gets warmer, then fuel will become less expensive

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It’s important ________ on things that produce greenhouse gasses.

Cut

Cutting down

to cut down

to cutting down

Doing simple things like turning off lights and _________all help.

papers

recycling

recycling paper

recycled papers

6/ _____

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Task 2. What have people done to save our planet?

Answer the question and make a mind map on a poster in 3 minutes and then you will have 1 minute to present it to the whole class. In your speech you should:

organise your ideas in a logical chain;

connect your ideas using appropriate linking words;

use topic related vocabulary.

6/_____

Total: 12/____​
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