For each metal complex give the coordination number for the metal species. co(en)2(co)2 br

[Co(en)2(CO)2]Br, cobalt has the coordination number 6, four bonds with ethylenediamine and two bonds with CO. en(ethylenediamine) is NH₂CH₂CH₂NH₂, a bidentate ligand coordinating through its nitrogen lone pairs.

[Pt(NH3)4]Cl2, platinum has coordination number 4, four bonds with ammonia.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

if you're asking what comes out, it's steam.