
reakcje redoks
Authored by Beata Makarska
Chemistry
12th Grade
Used 56+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Reduktor to atom lub jon pierwiastka chemicznego,który w reakcji redoks
przyjmuje elektrony i zmniejsza swój stopień utlenienia
oddaje elektrony i zmniejsza swój stopień utlenienia
przyjmuje elektrony i zwiększa swój stopień utlenienia
oddaje elektrony i zwiększa swój stopień utlenienia
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Pierwiastki w stanie wolnym mają zawsze stopień utlenienia
-II
I
III
0
3.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Stopień utlenienia siarki w cząsteczkach lub jonach: , , , wynosi odpowiednio:
II, VI, IV, -II
VI, II, IV, VI
VI, -II, IV, IV
VI, -II, IV, VI
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Wodór w większości związków przyjmuje stopień utlenienia
-I
+I
-II
0
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
1.Oblicz stopnie utlenienia azotu w podanych substancjach: HNO2, NH3, N2O5, NO-3
V, III, II, V
III, III, V, IV
III, -III, V, V
V, III, V, - III
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Masz daną reakcję: Fe + H2SO4 FeSO4 +H2
Żelazo przed i po reakcji ma odpowiednio stopień utlenienia
I i II
0 i II
0 i III
IV i O
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Masz daną reakcję redoks: C + HNO3 CO2 + NO2 + H2O. Stopnie utlenienia węgla przed i po reakcji wynoszą odpowiednio:
O i II
II i O
O i IV
II i IV
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