Practice determining oxidation states | Chemistry | Khan Academy

"Determining oxidation numbers in magnesium oxide and magnesium hydroxide.

Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful.

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[leumas]

Lovely comes out day before my exam thanks :D

[marlal]

It took me a minute but it finally clicked in my brain:)

[wspikew]

This guy could definitely do some Minecraft tutorials

[gauravtaranekar]

could you make a playlist/videos regarding coordination compounds?

[youngsterme]

you didnt teach the exact concept I was looking for, but it got crystal clear however by those examples, Im so so grateful :))

[lcdp]

When writing it as an ion, the plus or minus sign comes after. When writing oxidation numbers, the plus or minus sign comes before.

[unclejohnthezef]

Convention is actually to write “+2” for oxidation number

[kisho]

Why is it important to determine how many oxidation states an element has; what conclusions does it tell?

[ramdev]

why is it necessary to net charge be 0. and can be this be done in He, Ne, etc

[bencheveryday]

So answer for Mg(OH)2 oxidation states is: Mg= 2+.  But what about  O=?  and  H=? in the compound

[boliussa]

slighty error in video he gets the group wrong near the beginning when he says what group oxygen is in, it's in group 6.

[misswonderful]

I thank you made a mistake by saying "Oxygen have 6 valence electrons"

[ThatDentistChic]

Sorry but I can't understand anything bc of your voice