
Test 8
Authored by Nazerke Darkenbayeva
Chemistry
8th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
115г натрийдің зат мөлшерін (мольмен) табыңыз?
0,5
2,5
5
11,5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Төмендегі металдардың қайсысы сілтілік-жер металл емес?
Ba
Mg
Sr
Re
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
CuSO4 x 5H2O қосылысындағы оттектің массалық үлесі қанша?
47,8%
57,6%
64,2%
55,3%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Қай қосылыс негіз болып табылады?
H2O
KOH
HNO3
Na2SO4
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
1,12 л (қ.ж.) ацетилен (С2Н2) алу үшін жұмсалатын кальций карбидінің (CaC2) массасы қандай?
3,2 г
6,4 г
9,6 г
1,6 г
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Газдың сутекпен салыстырғанда тығыздығы 14-ке тең. Осы газдың ауамен салыстырғандағы тығыздығын табыңыз
0.966
0,29
28
29
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Қай молекулада ковалентті полюсті байланыс бар?
NaCl
Cl2
NH3
MgBr2
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