4.3 Redox Flashcards
What is an oxidation number?
The number of electrons involved in bonding to a different element
What will the oxidation number always be for elements and why?
0, because in a pure element, any bonding is to atoms of the same element.
What is the phrase used to remember which elements have priority over others when considering oxidation numnbers?
123FHOC. 1, 2, 3, Fluorine, Hydrogen, Oxygen, Chlorine
What is the sum of oxidation numbers in a compound equivalent to?
The total charge of the compound.
What are roman numerals used for in elements?
Showing the oxidation number of the element.
What is oxidation in terms of oxygen?
The gaining of oxygen
What is reduction in terms of oxygen?
The loss of oxygen
What is oxidation in terms of electrons?
The loss of electrons
What is reduction in terms of electrons?
The gaining of electrons
What is oxidation in terms of oxidation number?
An increase in oxidation number
What is reduction in terms of oxidation number?
A decrease in oxidation number
What is a redox reaction?
A reaction that involves both reduction and oxidation. If one process happens, so must the other.
What is produced when a dilute acid reacts with a metal?
A salt and hydrogen.
Metal + Dilute Acid =
Salt + Hydrogen
