Помогите плиз!!!!!!!!!!!!!!! воду массой 100г при температуре 12 С налили в калориметр, где находится лёд при температуре -5С. После установления теплового равновесия, температура льда повысилась до 0С, но масса льда не изменилась. Пренебрегая потерями тепла, оцените , какова масса льда в калориметре. Удельная теплоёмкость льда равна 2100 Дж/(кг х К), удельная теплоёмкость воды равна 4200ДЖ(кг х К)

Разделить рассказ Н. Булгакова на три части "Анна не грусти!"

Газ полученный при прокаливании известняка массой 1 кг пропустили через трубку с раскалённым углём.Полученный продукт обработали оксидом меди.При этом получили медь массой 864г.Рассчитайте выход продукта второй реакции от теоретически возможного,учитывая,что массовая доля карбоната кальция в известняке 90%. принимая выход продукта песледней и первой реакции равным 100%

ПОМОГИТЕ пожалуйста с переводом. Гуггл переводит плохо и непонятно.Заранее спасибо )

I can't remember ever having a normal family life.I first got taken into care when I was six. My mum could not look after me properly as she has a mental illness that makes her act a bit. I do not know what happend to my dad-I never knew him. So I had to stay with foster parents or in the children is home to give her a break for a bit. 
Although the children is homes are okay, they ere not the best places to live. The staff are always nice and frindly, but you are surrounded by stanges. I sometimes have to share a room and if you don't get on with the other girl, it is not much fun. Also,I never know how long I am going to be in for, so I have to just keep my stuff in a suitcase under the bed . 
I've had some nice foster parents, but nithing else lasts for long.If my mum is okey, I get to stay with her, but we only have a small flat, and I feel like I am the one who is running it. I worry about whether the bills have been in and out of hospital a lot, so I understand that she is not always able to look after me. Doreen, one of my foster mums, used to be a nurse, and the explained to me what was wrong with mum. This helped, because when I was younger, I felt like Mum just didn't want me.Now I know that it is because of her illnes. 
My life is okay in some ways.I go to the same school and I have some good friends.Obviosly, I fee a bit jealous of them when I go to their houses for tea. They’ve got a nice place to live, with a nice family, but they do not really appreciate it-they are complaining about them all the time! My friend Michelle wanted me to go and live with her, but it is not as easy as that. For a start, I couldn’t just leave Mum.When she’s healthy, I have to be there or her. 
It’d be nice if I had a brother or sister-at least then I’d have someone around all the time. I get fed up being on my own. 
I think Michelle feels sorry for me, living in different all the time, but because this is what I’m used to, it doesn’t seem too bad.I still have my mum, I have my friends and I know all the staff in the homes.It’s not like I’m completely alone in the world. 
When I leave school, I’m going to get a job and a nice flat for mum and me to live in. Then I’ll be able to put my pictures and unpack my stuff, because I’ll know for sure that I’m there to stay.

ребята помогите составить 20 примеров на порядок действий (по 2 действия) для 4 класса (только многозначные числа небольшие)