элементтердің табиғи ұяластары
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
МҰРАТХАН ЖАДЫРА
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
1. Химиялық қасиеттерінде ұқсастығы бар біріккен химиялық элементтер тобын ...... деп атайды:
А) Негізгі топтар
В) Қосымша топтар
С) Ұқсас емес элементтер тобы
D) Табиғи ұяластар
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Берілген элементтердіңң ішінен сілтілік металдарды табыңыз:
А) Mg, Li, Na, Ca, F
В) Li, Na, K, Rb, Cs
С) Na, K, Ca, O, Ba
D) Li, Ca, Na, K, Rb
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Алюминий хлоридінің формуласы
AlCl
AlCl2
AlCl3
Al2Cl3
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Калий мен су арасындағы реакция теңдеуі:
2K+2H2O=2KOH+H2
2K+H2O=K2O+H2
K+H2O=2KO+H2
2K2O+2H2O=2KOH+H2
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
H2O
H2
HCl
Na
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Сілтілік металдардың сыртқы электрондық қабатының жалпы формуласы:
ns1
ns2
np1
np2
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Сілтілік металдардың оксидтерінің жалпы формуласы:
R2O2
RO
RO2
R2O
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