Щелочные и щелочноземельные металлы
Quiz
•
Chemistry
•
1st - 5th Grade
•
Practice Problem
•
Hard
Разиля Шарифуллина
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Атомы щелочных металлов имеют на внешнем уровне
1 электрон
2 электрона
3 электрона
4 электрона
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Щелочноземельные металлы в сравнении со щелочными
одинаковые по активности
менее активны
неактивны
более активны
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
К щелочноземельным металлам относятся
Литий
Барий
Кальций
Стронций
Натрий
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Щелочноземельные металлы соединяются с водой, образуя:
гидроксиды
гидраты
гидриды
гидрокарбонаты
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Атому натрия соответствует строение:
2е,9е,2е
2е,8е,3е
2е,8е,1е
2е,8е,8е,1е
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При взаимодействии лития с кислородом образуются:
Пероксид лития
Гидроксид лития
Гидрид лития
Оксид лития
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Какие вещества образуются при взаимодействии натрия с водой
NaOH +H2
NaH+O2
Na2O+H2
NaOH
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