Предмет: Химия, автор: Snupdragon61

СРОЧНО!!¡
ТЕКСТ МОЖЕТ БЫТЬ НЕ ПРАВИЛЬНЫМ
НА ФОТО ПРАВИЛЬНО
1-6,7(2)
карточка индивидуальной работы по теме:
«ОКСИДЫ»
7 класс
Выполните задания:
1. Напишите определение оксидов.
2. Запишите формулы известных вам оксидов и назовите вещества.
3 Выпишите формулы оксидов и определите валентность элементов в них:
Alb03. Mg, SiO2, CS2, Fe2O3, K2S, H20, CaCl2, CO2, OF2, Co, AI, SO2, H2S, No
4. Заполните схему классификации оксидов:
Оксиды
Основные
Кислотные
Амфотерные
5. Выслушайте учителя и, работая с Таблицей растворимости веществ, заполните
таблицу:
Класс оксидов Пример (формула, название)
Соответствующий
Растворимость
гидроксид
гидроксида
6. Рассмотрите выданные вам оксиды (видео, демонстрацию) и запишите физические
свойства оксидов.

Приложения:

Ответы

Автор ответа: daryazaxarova04

Ответ:

Объяснение:

в 6 в зависимости от каких оксидов

Приложения:

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Українська література, автор: Liaaa

написать байку любую абсолютно )

1 год назад

Предмет: Українська мова, автор: 131404060

слова близькі за значенням до слова :вбрання,багряний,горять

1 год назад

Предмет: Английский язык, автор: МаЛеНьКаЯ28

помогите пожалуйста.... Как правильно употребить глагол в скобках в (Passive Voice)

She fell into the water because she (push). We (suppose) to take your remark seriously? They say she (interview) for the job tomorrow. The newspaper (deliver) before I got up this morning. Milk can (buy) at the shop on the corner. We (tell) there (be) a private bathroom for every room. Next week we (tell) who will be in charge of the department. I phoned the police when I found out that my passport (steed). A new plug for the television must (buy). Smoking (not/allow) in this part of the building. I (tell) that fifty people (invite) to the reception. The National Gallery (restore) at the moment. During the Gulf War many oil wells in Kuwait(damage). He (arrest) by a security guide, who later admitted he had made a mistake. When I entered the room Richard still (examine). I wonder who else is going (to invite). Oranges usually (treat) with wax and then (store) in large boxes. We can't take the car yet: it still (repair). The windows are really dirty: they (not/clean) for years. Do you need (wake) up in the morning? The local cinema (close down) three years ago. Very few typewriters (sell) these days. It (estimate) that after it (open) The Millenium Bridge (use) by four million people to cross the Thames each year. Simon says he regrets giving up studying French at school, as now he ( offer) a gob a France. Sarah felt unhappy that she (not/pick) for the basketball team. Trafalgar square looks much better now that some of the buildings (clean). The cat nearly (run) over but luckily the driverstopped just in time. Suzy recently (choose) to represent herschool at the national youth festival. The principle of free medicalcare for everyone ( establish) in Britain in 1948. Chris informed that he (select) to go on an expedition through the jungle. When the film came out it (praise) highly by critics. Nowadays ordinarry letters (replace) gradually by email. Although the puppy (sweep) out to sea by the huge waves he managed to swim back. The police suspected thet the jewels (hide) in the van. I recently (ask) to give a talk about how to prepere students for examinations. Customers (request) to leave their bags at he desk when trying on footwear. Her brother is in hospital now. He (treat) for a stomach ulcer. I just (tell) you wished to see me.

1 год назад

Предмет: Математика, автор: sabinaasg

×+2у/3у=
Если х+у/у=2

8 лет назад

Предмет: История, автор: Katana228

Сообщение про историческую личность Рафаэль. Срочно

8 лет назад