«Сера. Аллотропия. Физические и химические свойства. Применение»
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Medium
Дарья Матлаева
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Сера в природе встречается:
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Аллотропным видоизменением серы не является:
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Массовая доля (%) серы в природном минерале медном блеске (Cu2S) равна:
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Распределение электронов по энергетическим уровням в атоме серы:
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
5. Минимальная и максимальная степень окисления серы:
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. Верны ли суждения: А. Кусочки серы тонут в воде – её плотность близка к 2, а порошок серы всплывает, т.к. сера не смачивается водой. Б. Кристаллическая сера легко плавится. Это свидетельствует о том, что её кристаллическая решётка ионная.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. Верны ли суждения: А. Сера – твердое кристаллическое вещество желтого цвета. Б. Как и большинство неметаллов, она плохо проводит теплоту и не проводит электрический ток.
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