Предмет: Химия, автор: yulyatroenko

Помогите пожалуйста!
Составить формулы солей: магния и алюминия. Определите их растворимость.

Ответы

Автор ответа: Sanek124
0
Mgcl2(растворимый)
Al(so4)3(растворимый)

Автор ответа: yulyatroenko
0
спасиб
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ТЕКСТ ЗАДАНИЯ

Read the text and do the following tasks

Clothes For Every Day

In the past, clothes were often big and heavy. The old clothes above do not look very comfortable. Most people could not buy clothes made of light fabrics, like silk, because they were too expensive. There were no synthetic fabrics like nylon.

Today, our clothes are light and easy to wear. They are made quickly in big factories. Millions of clothes are made every day. Most people have lots of different clothes because they are cheaper now.

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In colder countries, people also cover their heads. In places where the winter is very cold, people wear hats made of wool or fur. Heat from the body stays in the wool or fur and keeps people warm.

Looking Good

How do we look good? People’s ideas about that have sometimes changed. About 400 years ago, people in Europe wore big white collars around their necks. You can see one in this painting of a woman from Holland. In Ancient China, yellow was the emperor’s color. Only the emperor could wear yellow clothes.

To look good today, men wear ties, and women wear scarves or jewelry. The head and neck have always been important in the design of clothes. When we meet people, we usually look at the top half of their body their face and their eyes.

Some people want to look rich and important. They buy expensive clothes made by famous designers. Presidents and politicians usually wear expensive clothes.

Mark the statements T (true) or F (false)

1. Most people couldn`t buy silk clothes because of their high price.

false

true

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