Предмет: Химия, автор: daraapanasevic

СРОЧНО!!!!!!!!!!!!!!!!!!!!!
До п'яти вечора!!!!!!
первий варіант

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Ответы

Автор ответа: karinaqwx1680
0
1.O
2. Для запалювання спиртівки:

1.Заповніть резервуар спиртом на 2/3 об'єму.
2.Зачекайте кілька хвилин, щоб спирт вбрався в горілку.
3.Спількуйтеся за допомогою довгого запалювача або сірничок, уникаючи при цьому відкритого вогню.
Уникайте:

1.Заповнення резервуару під час горіння або недавно після нього.
2.Заповнення, коли спирт вже розплавлений або нагрітий.
3.Використання легкозаймистих рідин або піддавання спиртівку впливу відкритого полум'я.
Завжди дотримуйтеся інструкцій та використовуйте обережно, щоб уникнути травм або пожежі.
3.K,Mg
4.1.А В
2.Б а
3.В б
5.б
6.Тіла:Лінійка,парта
Речовини:грудочка цукру,кухонна сіль,олія,залізо
7.Прості:Na,N2,03
Складні:KCl,BaS04,Cu(NO3)2
8.Na2S
9. Відносна атомна маса магнію становить близько 24,3, тоді як відносна атомна маса карбону дорівнює приблизно 12,0. Таким чином, відносна атомна маса магнію більша за відносну атомну масу карбону приблизно в 24,3 / 12,0 = 2,025 рази.
10.a
11.лінь робити
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Предмет: Английский язык, автор: atolegen010195
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