biochemistry

[nugnug]

i wasn't really sure where to put this but how does the fact that when you add manganese dioxide in hydrogen peroxide and it fizzes and you add liver to hydrogen peroxide and it also fizzes say whether or not liver contains manganese dioxide.

and it said to consider that when manganese dioxide and water were added to hydrogen peroxide and boiled it didn't fizz as much.

[Tyran]

hydrogen peroxide will react (or 'fizz') with a lot of substances

[MrMistery]

the liver contains some iron, no Mg

[EmmVeePee]

Water dilutes the Hydrogen Peroxide so that fewer reactions between the two occur. The water seperates the Mg and H2O2.

I'm no chemist, but I believe the 'fizzing' are bubbles of Hydrogen (H2)

2Mg + H2O2 -> 2MgO +H2

^Sounds about right.

[victor]

Hey, wait a minute....
is it same between Manganeese dioxide and Magnesium oxide?
because I think thet Manganeese dioxide is MnO2..it's proven by there're 2 Oxygen atom which means that the oxidation number for Mn is +4., while Mg only has one oxidation number which is +2.
I think for that reaction, MnO2 acts as a catalyst.