
9 д химия
Authored by Aruzhan Temirtassova
Chemistry
7th Grade
Used 1+ times

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1.
OPEN ENDED QUESTION
3 mins • 1 pt
1. ЗАДАНИЯ: 1. Заполните таблицу
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
2. а) Что в органической химии называется гомологическая разность?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
б) какая общая формула у предельных углеводородов? _____________________________
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
в) подчеркните гомологи метана
С6Н14 С2Н4 С2Н6 С2Н2 С5Н8 С3Н6 С3Н8
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
3. а) Какие вещества называют ИЗОМЕРЫ?
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
б) Составьте три изомера пентана и дайте всем названия.
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
4. Найдите молекулярную формулу предельного углеводорода, если известно, что его плотность по воздуху равна 2,48 , а массовая доля углерода – 83,3%.
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