Jakie współczynniki stechiometryczne powinny zostać wpisane przed reagenty (w miejsca _ ) ?
_Fe2O3 + _C --> _Fe + _CO2
Współczynniki stechiometryczne reakcji chemicznych.
Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
Monika Dudek
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jakie współczynniki stechiometryczne powinny zostać wpisane przed reagenty (w miejsca _ ) ?
_Fe2O3 + _C --> _Fe + _CO2
2 , 3 , 4 , 3
2 , 3 , 3 , 1
1, 2 , 5 , 6
2 , 4 ,3 ,3
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jak współczynniki powinny zostać wpisane przed reagentami w miejsca _ ?
_P4 + _O2 --> _P4O10
2 , 4 , 3
1 , 5 , 1
1, 1 , 3
2, 6 , 2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jak należy uzupełnić współczynniki stechiometryczne ?
_KOH + _HCl --> _KCl + _H2O
1,1,1,1
2,1,1,2
1,2,3,1
2,1,3,1
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
_FeCl3 + _NaOH --> _Fe(OH)3 + _NaCl
1,3,1,3
1,2,1,2
3,1,3,1
1,2,3,1,
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
_Si3N4 + _O2 --> _SiO2 + _N2
1,2,3,1
1,3,3,2
2,3,1,2
1,2,3,3
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