химия
1st - 2nd Grade
•60 Qs
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химия
Quiz
•
Chemistry
•
1st - 2nd Grade
•
Practice Problem
•
Medium
Разыева Жансая
Used 2+ times
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60 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Рений қыздырғанда күкіртпен және галогендермен әрекеттеседі.
Реакция теңдеуін жазыңыз: Re + Cl2 =>
А. 2ReCl3
B. 2ReCl5
C. 2ReCl7
D. 2ReCl
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Реакцияны Электрондық баланс әдісімен теңестіріп, жалпы коэфиценттер санын тап:
KTeО4+Zn+H2SO4=Te+ZnSO4+K2SO4+H2O
А. 33
В. 35
С. 31
D. 30
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Рений қышқылы :
А. HRe
B. HReO4
C. Re2O5
D.NH4ReO
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Реакция теңдеуін аяқтаңыз
NH4ReO4 + H2 =>
A. Re+H2O+NO2 + N2
B. NO + Re2O5 + H2O
C. Re + H2O + NH4+ N2
D. H2O + Re+ NH3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. Re2O7 + H2O (t’C)=>
A. Re(OH)7
B. HReO4
C. Re(OH)3
D. HReO7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. Сол жақтағы коэфиценттер саны:
Тс + НNO3 = …
А. 9
В. 7
С. 12
D. 10
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. KReO4 - қосылыста атаңыз
А. Калий перренаты
В. Калий перманганаты
С. Калий цианиді
D . Калий Ренаты
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