Предмет: Химия, автор: TryFait

К 2,6 г смеси, состоящей из цинковой пыли и оксида цинка, добавили соляную кислоту.Выделившийся газ занял объём 0, 448л.Вычислите массовые доли компонентов смеси. 40 баллов

Ответы

Автор ответа: Zagadaeva

Видно если не видно то напишите я ещё раз скину вам

Приложения:

TryFait: скинь ещё раз

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: wasiljewaanastasia

LISTENING Task 1. Listen to Mario and Tamara talking about what film they want to see and fill in the blanks with suitable words. Tamara: Hi, Mario. Do you want to go and watch a film? Mario: Hi, Tamara. Sure, what's on? Tamara: Well, there are two 1) films, Mr and Mrs Jones and War Games, and they're both in 3D. Mario: I've already seen Mr and Mrs Jones. I haven't seen War Games, but I don't really want to see an action film. What else is on? Tamara: There's that 2) film, Robot 2075, but I've already seen it. Mario: Is it good? Tamara: Yes, it is, but I don't want to see it again. There's a 3). called Forever. Mario: Mmm, I'm not sure. Are there any 4). films on? Tamara: Yes, there's Midnight Moon. It's got vampires in it. Mario: OK, sounds good. Let's go and watch Midnight Moon. What time is it on? Tamara: It's on at 12 o'clock or at 5). Mario: Is it on this evening? Tamara: Yes, at 7:30. Mario: Perfect. Let's go at 7:30. Tamara: OK, shall we meet at the 6) at 7:00? Mario: Great! See you later. Tamara: Bye. READING Task 2. Read the story about life in the countryside. My name is Peter. I live in the countryside, in a cottage which is over 100 years old. The cottage is near a small village. I love living here because it's calm. There aren't many cars or busses, the streets are clean. You can go for a walk because there isn't any violence. You can even leave your doors open, nobody will steal anything. We know all the neighbors and at the end of the day, people get together at the main square and chat. We go to bed early, as there isn't much to do in the evening. There isn't any disco, theatre or cinema. We also don't have a museum or a youth club. However the children can play in the streets or in the fields and they can have animals. You can sleep very well because there is no noise. You can hear the birds singing or the rain pouring. The air is pure and cool and you can see millions of stars. It is a bit difficult in winter. Sometimes it snows a lot and then we are isolated for a few days. Despite this I like living in the countryside. Answer the questions 1. Where does Peter live? 2. Why does Peter love living in the countryside? 3. When do people go to bed? Why? 4. What do people hear at night? 5. What season is difficult for people living in the countryside? 6. What season is difficult for people living in the countryside?

6 лет назад

Предмет: Математика, автор: donatwiqikdjd

Найдите значение выражения: -0,64*(-2,7)-0,36*(-2,7)

6 лет назад

Предмет: Математика, автор: timyr5092

ПОМОГИТЕ ПОЖАЛУЙСТА СРОЧНО

6 лет назад

Предмет: Литература, автор: Ridesdion

Образ Петрушки в рассказе "Возвращение" ("Семья Иванова")

10 лет назад

Предмет: Математика, автор: RobertOs18

Решите уравнение:
-6m+32=2

10 лет назад