
Keemilise reaktsiooni võrrand
Authored by Tiia Raudsepp
Chemistry
7th - 8th Grade
Used 5+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vali õige vastuse variant: N
1 lämmastiku aatom
1 lämmastiku molekul
1 naatriumi aatom
1 naatriumi molekul
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vali õige vastuse variant: N2
1 lämmastiku aatom
1 lämmastiku molekul
1 naatriumi aatom
1 naatriumi molekul
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vali õige vastuse variant: 2N2
2 lämmastiku aatomit
2 lämmastiku molekuli
2 naatriumi aatomit
2 naatriumi molekuli
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuidas tähistatakse : ÜKS RAUA AATOM
Fe
Fe2
2F
F2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kuidas tähistatakse: 5 HAPNIKU MOLEKULI
2O5
5O2
5H2
2H5
6.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
Mitu hapniku aatomit on väävelhappe molekulis (sisesta arv) -- > 5H2SO4
(a)
7.
FILL IN THE BLANKS QUESTION
30 sec • 1 pt
Mitu lämmastiku aatomit on lämmastikhappe molekulis (sisesta arv) -- > 3HNO3
(a)
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