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cheminių reakcijų lygtys

Quiz
•
Chemistry
•
2nd Grade
•
Hard
Elvyra Ajauskaite
Used 17+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2N2 + 6H = 2NH3
4N + H2 = 2NH
N2 + 3H2 = 2NH3
4N + 2H3 = N2H3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kur teisingai parašyta reakcijos lygtis
geležis + deguonis = geležies (II) oksidas
2Fe + O2 = 2FeO
Fe + O2 = FeO2
2Fe + O = 2FeO
2Fe + O = FeO2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nurodyk teisingai išlygintą reakcijos lygtį
N2 + 2O = N2O3
2N + O2 = N2O3
2N2 + 3O2 = 2N2O3
N2 + O2 = N2O3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nurodyk teisingai išlygintą reakcijos lygtį
Mn + O2 = Mn2O7
2Mn + 7O = Mn2O7
2Mn + 7O2 = 2Mn2O7
4Mn + 7O2 = 2Mn2O7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kur teisingai įrašyti koeficentai
Cu + O2 = CuO
2Cu + 2O2 = 4CuO
Cu + O2 = 2CuO
2Cu + O2 = 2CuO
4Cu + O2 = 4CuO
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kur teisingai įrašyti koeficentai
Na + O = Na2O
4Na + O2 = 2Na2O
2Na + O = Na2O
4Na + O2 = 2Na2O2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koks reakcijos tipas
2H20= H2 +2O2
Jungimosi
Skilmo
Pavadavimo
Mainų
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