Question 1
In an oxidation-reduction reaction, the substance reduced always ________.
◦ loses electrons
◦ gains electrons
◦ takes on oxygen atoms
◦ becomes a charged species
◦ gives up hydrogen atoms
Question 2
Given the following equation, what is the correct form of the conversion factor needed to convert the number of moles of O
2 to the number of moles of Fe
2O
3 produced?
4Fe + 3O
2 → 2Fe
2O
3◦
◦
◦
◦
◦