1. Atome innerhalb eines Atomverbandes eines Elements haben immer die Oxidationszahl 0. Beispiel: Sauerstoff O2

2. verschiedene Atome: 2.1 Metalle positive OZ 2.2 Fluor F: - I 2 3 Wasserstoff H: + I 2 4 Sauerstoff O: - II 2.5 Halogene: - I

3. Bei Verbindungen ist die Summe der Oxidationszahlen aller Atome 0.

4. Bei Ionen ist die Summe der Oxidationszahlen aller Atome gleich der Ionenladung.

Oxidationszahlen sind eine fiktive Größe, die beim Aufstellen einer Redoxreaktion hilft. Beim bestimmen muss man einige Regeln beachten.

Oxidation ist immer eine Erhöhung der Oxidationszahl eines Elements, Reduktion immer die Reduktion der Oxidationszahl eines Elementes.

Oxidation ist eine Reaktion, bei der Elektronen abgeben werden. Bei einer Reduktion werden Elektronen aufgenommen.

1. Man bestimmt die Oxidationszahlen der beteiligten Verbindungen.

2. Man erstellt Teilgleichungen und bestimmt Oxidation und Reduktion anhand der Änderung der Oxidationszahlen.

3. Man fügt die aufgenommenen oder abgegebenen Elektronen in die Teilgleichung ein.

4. man führt, abhängig vom umgebenden Medium, einen ladungsausgleich durch, so dass auf beiden Seiten der reaktionsgleichung die gleiche Ladung steht. Das muss nicht 0 sein!

Im sauren gleicht man mit Oxonium-Ionen H3O+ aus, im Alkalischen mit Hydroxid-Ionen OH-. hin und wieder wird in schmelzen gearbeitet, dann gleicht man mit Oxid-Ionen O2- aus.

5. Man muss mit Wasser H2O einen Stoffausgleich durchführen, sodass links und rechts des Reaktionspfeils die gleiche Summe der Elemente Wasserstoff und Sauerstoff vorliegt.

6. Man kontrolliert die Elektronenbilanz. Es müssen genauso viele Elektronen aufgenommen werden, wie abgegeben wurden. Ist das nicht der Fall, wird ausgeglichen, indem man das kleinste gemeinsame Vielfache der Elektronenzahl sucht und die Teilgleichungen entsprechend multipliziert.

7. Man erstellt eine gesamtgleichung durch Addition der beiden Teilgleichungen. Gleiches wird dabei gekürzt.

Bei organischen Verbindungen wird jedes Kohlenstoff-Atom einzeln betrachtet. Kohlenstoff-Kohlenstoff- Bindungen zählen nicht zur Ermittlung der Oxidationszahl, Wasserstoff hat immer +1, Sauerstoff immer -2. Insgesamt muss das Kohlenstoff-Atom mit seinen Bindungspartnern (außer Kohlenstoff) auf die Summe 0 kommen.

Canada is the homeland of equality justice and tolerance.

Candidates don't want to be associated with poor people, people who have jobs or are ugly; they want to be associated with a certain middle class demographic, so as a result they leave those others out completely.

There may sometimes be ungenerous attempts to keep a young man down; and they will succeed, too, if he allows his mind to be diverted from its true channel to brood over the attempted injury.

We are giving the citizens of Poland a sense that a reasonable and predictable government is ruling here.

Experience is that marvelous thing that enables you to recognize a mistake when you make it again.

'Warcraft' is going to be a period of my life I treasure and loathe at the same time.

If you're an entrepreneur and you're starting a company, I think the first thing you do is you go and talk to a bunch of people. But then the next thing you probably should do is figure out if there's a broader demand than just people you know. That's where I think SurveyMonkey is pretty valuable to people.

When someone pitches a joke for a character that is just perfect, and you can imagine that actor reading that line at your table read or on the set, it's like the sound of a snap snapping into place.

Let's abolish the IRS, let's eliminate income tax, let's eliminate corporate tax, let's balance the federal budget, and if we need a tax, it can be one federal consumption tax.

I've got a lot of ham in me.

I don't believe we are supposed to go through life defeated and not having enough money to pay our bills or send our kids to college.

Most rock journalism is people who can't write, interviewing people who can't talk, for people who can't read.

The 'Gossip Girl' idea and ideologies, like, they sort of encourage this certain kind of, like, materialism and superficiality that isn't, I would say, the best thing in the world.

I don't want to, in any way, characterize a race or a people or get accused of racial profiling, but the Irish, as lyrical and romantic as they can be in their poetry, they can be every bit as repressed in their personal relations.

If you have a flop movie, so what? And if you have a hit movie, it's 'so what,' too - it's on to the next movie.

I haven't been to Tasmania. I haven't been to the South Pole, and I haven't been to the North Pole. I want to see the polar bear migration before there are no polar bears. I want to see Glacier National Park before the glacier melts.

Think 'Game of Thrones.' In the old days, this sort of show might be considered bad writing. It doesn't really seem to be moving toward a crisis or climax, it has no true protagonist, and it's structured less like a TV show or a movie than a soap opera.

I believe your attitude is the most important choice you can make.

I am cool.

When a human being becomes so still that they begin to lose awareness of their gender, and they are simply looking into that abyss where there is no notion of self whatsoever, the world disappears. And that's really the only place to go. It's the only place to remain.

The United Nations is designed to make possible lasting freedom and independence for all its members.

Courage isn't absence of fear, it is the awareness that something else is important.

A good hair day is when my curls are popping. Sometimes my curls and waves, they like to go a little wild sometimes. They have a mind of their own. But some days, they just fall right into place.

For film and TV, try to have a more conversational tone. For stage, you'll need better diction and bigger vocal production.