Quiz: Redox Reaction Balancing and Ionic-Electronic Balance

Master redox reaction balancing faster - reinforce what you learned about ionic-electronic balance in just 5 minutes.

Science mixed 10 Questions Video Quiz
Progress 0 / 10
Q1 Beginner 1 pts

According to the video, which specific exam question from the Polish Matura exam is analyzed as an example? Video Reference:
"Przyjrzyjmy się teraz bliżej zadaniu 18 ze starej matury z maja 2015 roku...."

Timestamp: 0:45

Q2 Intermediate 2 pts

The video explains that iodic acid (HIO) serves what specific role in the analyzed reaction? Video Reference:
"Po pierwsze kwas jodowy 1 pełni w analizowanej reakcji rolę utleniacza...."

Timestamp: 2:00

Q3 Beginner 1 pts

According to the video, what product is formed when ethanol undergoes oxidation in this reaction? Video Reference:
"kwas jodowy 1 o wzorze HIO utlenia etanol do aldehydu..."

Timestamp: 1:30

Q4 Intermediate 2 pts

The video states that triiodide ions are formed from the reaction between which two specific substances? Video Reference:
"w wyniku reakcji jodu cząsteczkowego z jonami jodkowymi powstają trwałe jony trijodkowe..."

Timestamp: 1:45

Q5 Intermediate 2 pts

True or False: According to the video, the ionic-electronic balance method requires knowledge of formal oxidation states of atoms. Video Reference:
"tak zwanym bilansie jonowo-elektronowym, który ma tę zaletę, że przy jego stosowaniu nie jest koniec..."

Timestamp: 0:25

Q6 Advanced 3 pts

According to the video, how many electrons must be added to balance the charge in the reduction equation of iodic acid? Video Reference:
"należy do substratów dopisać dwa elektrony..."

Timestamp: 3:00

Q7 Beginner 1 pts

The video mentions that question 18 was part of a bundle of questions. Which specific questions made up this bundle? Video Reference:
"zadanie 18 było jednym z czterech zadań stanowiących w arkuszu maturalnym wiązkę, która zaopatrzona ..."

Timestamp: 1:15

Q8 Intermediate 2 pts

True or False: According to the video, in the ethanol oxidation equation, two H⁺ ions must be added to the product side for mass balance. Video Reference:
"Aby spełniony był bilans masy, w kroku drugim po stronie produktów należy dopisać dwa jony H+..."

Timestamp: 3:20

Q9 Advanced 3 pts

According to the video analysis of student solutions, what specific mistake did the student who received zero points make? Video Reference:
"Po pierwsze zdający pomylił równanie reakcji utleniania z równaniem procesu redukcji. Po drugie, błę..."

Timestamp: 4:40

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Q10 Advanced 3 pts

True or False: The video states that the student who received one point correctly wrote the oxidation equation but failed to properly account for triiodide ion formation in the reduction equation. Video Reference:
"Poprawnie napisał bowiem równanie reakcji utleniania. Równanie reakcji redukcji napisane przez zdają..."

Timestamp: 4:20

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