[blah]

i mixed hydrogen peroxide, cobalt chloride, and sodium bicarbonate (baking soda) together, and got a bright green solution, with a dark brown precipitate. along with a lot of unknown gas.  Id like to know what any of these compounds are...it also gave off a lot of heat...

[AWK]

At least try to explain these reaction by yourself.

[billnotgatez]

testing subscripts

hydrogen peroxide    H₂O₂
cobalt chloride      CoCl₂         anhydrous
sodium bicarbonate   NaHCO₃

[blah]

I think i have it figured out...

H₂O₂ + CoCl₂ + NaHCO₃ =

H₂O + 0 + NaCl₂ + CoHCO₃

[Alberto_Kravina]

I think i have it figured out...

H₂O₂ + CoCl₂ + NaHCO₃ =

H₂O + 0 + NaCl₂ + CoHCO₃

No! In your reaction Cobalt is reduced and there is no oxidation. Besides, There is no compound with the formula NaCl₂. I think that the brownish ppt. that you got was Cobalt carbonate

[billnotgatez]

Cobalt carbonate CoCO₃

I am curious.
Was the precipitate brown or deep red or dark purple color?

I thought that oxygen usually existed as O₂ when it is a gas.
Are we sure that oxygen was the gas released?

[blah]

Yes, it was a very dark brown color, and oxygen was present (glowing ember placed near the solution burst into flame ).   I forgot the subscript 2 when i placed in O, by the way...

[lemonoman]

A similar reaction (Hydrogen Peroxide - Cobalt Chloride - Potassium Tartrate) is discussed at http://www.flinnsci.com/Documents/demoPDFs/Chemistry/CF0255.01.pdf

Your reaction is a tiny bit different, but with a bit of thinking, I hope you will be able to piece everything together