у какого элемента 7 электронов?

Химическая викторинка

Quiz
•
Chemistry
•
11th Grade
•
Medium
Даша Осипова
Used 4+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
марганец
натрий
азот
кислород
2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
относительная атомная масса атома хлора
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
максимальная валентность азота
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
выберите реакцию разложения
2NaOH + H2SO4 = Na2SO4 + 2H2O
NH4NO3 = N2O + 2H2O
3H2 + N2 = 2NH3
AgNO3 + NaCl = AgCl + NaNO3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CrO - какой оксид?
основный
амфотерный
кислотный
это оксид?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cr2O3 - какой оксид?
основный
амфотерный
кислотный
это оксид?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CrO3 - какой оксид?
основный
амфотерный
кислотный
это оксид?
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