
Органика 40 - 60
Quiz
•
Chemistry
•
University
•
Practice Problem
•
Medium
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Натрий мен калий силикатының артық мөлшердегі кремнеземмен аморфты мөлдір құимасы қандай зат?
шойын
цемент
Шыны
пластика
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
KNO3 заты құрамында қай элемент жоқ?
азот
оттек
сутек
Натрий
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
31г натрий оксидінің (Na2O) молекула саны?
v=m/м=1,6/32=0,005моль
v=m/м=34/17=2моль
v=m/м=31/62=0,5моль; N=0,5моль×6,02×10²³=3,012
v=m/м=5,6/56=0,1моль; N=0,1моль×6,02×10²³=0,602×10²³
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Табиғатта химиялық таралу бойынша бесінші элемент?
франций
Натрий
калий
калций
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Металдар периодтық жүйенің қандай топтарында орналасқан?
IIA-IVA
IVA-VA
IIA-VIA
lA-VIA
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Периодтық жүйеде нешеден астам металл бар?
90
60
96
87
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Металды табыныз?
cl
Na.
F2
Br2
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