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WorksheetsUnderstanding Redox Reactions
Total questions: 1
Worksheet time: 17mins
1-10.
Answer the questions below after watching the video
What is the role of electrons in chemical bonding?
They are exchanged in all chemical reactions.
They prevent atoms from bonding with each other.
They enable atoms to bond with each other to form molecules.
They are only involved in covalent bonds.
What does the term 'redox' stand for?
Reactive and oxygen
Red energy and oxidation
Reduction or oxygen
Reduction and oxidation
Why is oxygen considered the quintessential oxidizer?
It donates electrons to other molecules.
It stabilizes molecules by adding electrons.
It pulls electrons off of one molecule to make itself more stable.
It always gains protons in reactions.
What does the mnemonic 'OILRIG' stand for?
Oxidation is light, reduction is gravity
Oxygen in layers, reduction in gas
Oxidation is loss of electrons, reduction is gain of electrons
Oxygen is light, reduction is gain
What is the oxidation state of oxygen in most compounds?
-1
+1
0
-2
How do you determine the oxidation state of sulfur in SO4^2-?
It is always 0 in compounds
Using third-grade algebra based on the compound's overall charge
By assuming it's always +6
By subtracting the number of hydrogens
What was the Haber process used for?
Creating water from hydrogen and oxygen
Converting atmospheric nitrogen into ammonia
Producing oxygen for industrial use
Extracting silver from its ore
In the Haber process, what happens to nitrogen's oxidation state?
It increases, indicating oxidation
It decreases, indicating reduction
It alternates between increasing and decreasing
It remains the same
What is the result of the reaction between silver diamine and an organic aldehyde?
Production of elemental nitrogen
Creation of hydrogen peroxide
Release of oxygen gas
Formation of carboxylic acid, ammonia, and water
How are electrons treated in the balancing of redox equations?
Only considered in acid-base reactions
Assumed to be lost in the reaction
Counted to ensure the same number on both sides of the equation
Ignored, as they are not important
