Oxidation States and Redox Reactions

Flashcards covering oxidation states, rules for determining oxidation numbers, redox concepts, and tie line identification from the lecture.

What products are produced when sodium metal reacts with water in an oxidation-reduction reaction?

Hydrogen gas and hydroxide

What is the oxidation state of an atom in an element?

$$0$$

How is the oxidation state of a monoatomic ion determined?

It is the same as its charge.

What is the oxidation state of fluorine when it is in a compound?

$$-1$$

What is the usual oxidation state of oxygen in compounds, and what are the two exceptions mentioned?

It is usually $-2$, except when bonded as a peroxide or bonded to fluorine.

What oxidation state does hydrogen tend to have in compounds?

$$+1$$

What are the oxidation states typically assigned to alkali metals and halogens in compounds?

Alkali metals are $+1$ and halogens are $-1$.

What method using lines is described to identify what is being oxidized and what is being reduced?

Taking a tie line from one element on the reactant side to that same element on the product side.

In the reaction between sodium and chlorine, what change in oxidation state does sodium undergo, and does it gain or lose an electron?

Sodium goes from $0$ to $+1$, which means it loses an electron.

Which acronyms are mentioned to mark an element that is losing an electron?

Leo or oil

In the reaction between sodium and chlorine, what change in oxidation state does chlorine undergo, and does it gain or lose an electron?

Chlorine goes from $0$ to $-1$, which means it gains an electron.

Which acronyms are mentioned to mark the process where something gains an electron and is reduced?

GER or RIG

Which lab experiment corresponds to the oxidation-reduction concepts discussed in this lecture?

Experiment 6