Redox. reakce-RVP:Část. slož a chem. prvk.;Chem. reak.; Anorg sl
9th Grade
•15 Qs
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Redox. reakce-RVP:Část. slož a chem. prvk.;Chem. reak.; Anorg sl
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Martin Louda
Used 7+ times
FREE Resource
Enhance your content in a minute
15 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Při _______ dochází ke snížení oxidačního čísla prvku.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Je tato rovnice redoxní?
NaOH + HCl → NaCl + H2O
NE
ANO
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Co je v této reakci redukčním činidlem?
CuO + H2 → H2O + Cu
Vodík
Oxid měďnatý
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jaký prvek je zde oxidačním činidlem?
C + O2 = CO2
Uhlík
Kyslík
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O kolik se změní oxidační číslo železa v této rovnici?
Fe2O3 + 3 CO → 3 CO2 + 2 Fe
2
0
1
3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O kolik se v této rovnici změní oxidační číslo vápníku?
H2SO4 + CaCO3 → CaSO4 + H2O + CO2
1
0
2
5
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Redoxní je ta reakce, při které dochází ke změně __________ čísla atomů.
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