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redoksreaksioonid
Quiz
•
Chemistry
•
8th - 9th Grade
•
Medium
Janne Karu
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25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mida teeb oksüdeerija elektronidega?
liidab
loovutab
ei tee midagi
2.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Mida nimetatakse redoksreaktsiooniks?
3.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Raud on oksüdeerija selles reaktsioonis
Fe(OH)3 + 3HCl → FeCl3 + 3H2O
true
false
4.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
mis on lämmastiku laeng reaktsiooni alguses ja lõpus?
2KNO3
= 2KNO2 + O2
ll ja lll
lll ja V
V ja lll
lV ja lll
ll ja V
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Mis on räni laeng?
Na4SiO4
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
mis on kloori laeng?
KClO3
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
kroomi laeng on valemis VI
K2Cr2O7
true
false
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