
Повторение 7в 8
Authored by Marina Komarova
Chemistry
8th Grade
Used 12+ times

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15 questions
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1.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
В состав атомного ядра не входят
мю-мезоны
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
у какого элемента на 37 протонов больше, чем у ниобия?
серебро
иридий
платина
бериллий
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
у какого элемента число электронов равно количеству нейтронов у молибдена?
иод
ксенон
америций
цезий
4.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
В каком ответе ошибка?
M(CuSO4)=160
M(NaCl)= 58,5 г\моль
M(H2CO3)=62г\моль
M(CaCl2)=110г\моль
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Молярная масса серной кислоты на 35 г больше, чем у
сернистой кислоты
азотистой кислоты
азотной кислоты
кремниевой кислоты
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
соль сернистой кислоты называется
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
КОН-это ...... калия
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