Осуществить цепочку превращений : Оксид железа (II) -->железо--> хлорид железа (II)-->  гидроксид железа(II)-->гидроксид железа (III) -->хлорид железа (III)--->хлорид железа  (II) 

Part One
Here is a conversation between Julia and her Uncle Jim. Julia is going on a school
trip to Spain, to help improve her language skills. Read the conversation and write
each verb in brackets in the correct tense. The first one has been done for you.
Oh, Uncle Jim, I am so happy – and I know you will be (be) too when you
hear my news. I have been talking to Mum and Dad and they
1______________ (agree) that I can go on the school trip to Spain. It is
quite expensive, but they think it will be worth it.
Hello Julia. You are right, I 2______________ (please). As you know, I think
language learning is very important, and the best way to learn is to spend time
in the country where the language is spoken. And I 3______________ (know),
because that is how I have managed to speak three languages – even though I 
am only fluent in English! I just wish I could speak French and Russian better
than I do. Of course, your mother 4______________ (speak) French very
fluently, but that’s because she lived there for a year when she was a student.

I know, Mum is brilliant in French. It makes it so easy when we go on holiday there;
she can do all the talking. She says it is the only time Dad allows her
5______________ (make) all the decisions – and the reason he does so is that he
cannot understand a word she is saying. So my idea is that, if I improve my
Spanish, then perhaps we could go on holiday to Spain next year. That would be
fantastic, as I am sure the weather is better there, and they have some fabulous
beaches.

I don’t know about the weather in Spain, but I wish I had been given your
opportunity to study in another country for three weeks when I 6______________
(be) still at school. And your school trip to Spain is not a holiday. You will have to
work hard, you know. Will you be staying with a family? Do you know which city
7______________ (go) to? And how long will you be there?
Steady on, you are asking so many questions! We will be going for three weeks,
and I will be living with my penfriend’s family, in Madrid – and I will also be going to
school with her every day, and 8______________ (have) lessons in Spanish. All
day, every day. There will be other girls from my school there too, but as they
9______________ (be) older than me, I will not see them very often in the Spanish
school. I will be on my own with my penfriend, Sophia.
That’s excellent. You will either have to learn to speak in Spanish, or you will have
to live for three weeks without talking – and I know you can’t do that. I tell you what
I will do. If you promise to work hard while you are there, I will give you some
spending money before you go, and if your teachers tell your parents that you
10______________ (make) good progress while you were in Spain, I will also give
you spending money for that holiday in Spain you want so much.

Part Two

друзья,  помогите убедиться в том, что задание сделано правильно!

Later Julia is telling her mother about the telephone call with her Uncle. Fill the
gaps using the numbered phrases written in in bold from the conversation in Part
One. The first one has been done for you.
“Oh, Mum, I have just had a lovely chat with Uncle Jim. I was telling him about you and
Dad agreeing that I can go to Spain He is so pleased; he said that he thinks language
learning is very important, and that the only way 11___________________________ to
speak three languages was by spending time in each country.
He also said that you speak French really well, but that is because
12___________________________ when you were a student. And he added that he
wished he had been given the opportunity to study abroad when he was at school.
Oh, and he asked me loads of questions about the arrangements. He is worse than you
and Dad! He wanted to know if 13___________________________ which city I was
going to, and where I would be staying. So I told him about going to Madrid, and being
with Sophia, and I explained that for most of the time 14___________________________
with her.
And then he was really amazing! He said that if 15_______________________________
while I was in Spain, he would give me some spending money! That means you and Dad
won’t have to pay out quite so much for the trip.”

почему в рассказе конь с розовой гривой бабушка простила внука

Запишите уравнение реакций последовательных превращений : SnO--> Sn(NO3)2-->Sn(OH)2-->SnSO(4)-->SnCl(2)