Glory of the Pandaria Hero

Heroic: Scholomance
Attention to Detail (you can use Barov Helper: http://www.curse.com/addons/wow/barovhelper)
Rattle No More
Sanguinarian
School's Out Forever
*Polyformic Acid Science ([npc=59613] drops [item=85580])

Heroic: Gate of the Setting Sun
Bomberman
Conscriptinator
*Polyformic Acid Science (kill [npc=56636] (3rd Boss) under the effects of the potion)

Heroic: Mogu'shan Palace
Quarrelsome Quilen Quintet
Glintrok N' Roll
What Does This Button Do?
*Polyformic Acid Science ( kill [npc=61445] (1st Boss) under the effects of the potion)

Heroic: Scarlet Halls
Humane Society
Mosh Pit

Heroic: Scarlet Monastery
Burning Man
And Stay Dead!

Heroic:Shado-Pan Monastery
Respect
The Obvious Solution
Hate Leads to Suffering
*Polyformic Acid Science (kill [npc=56747] (1st Boss) under the effects of the potion)

Heroic: Siege of Niuzao Temple
Where's My Air Support?
Return to Sender
Run with the Wind
*Polyformic Acid Science (kill [npc=61567] (1st Boss) under the effects of the potion)

Any Difficulty: Stormstout Brewery
How Did He Get Up There?
Ling-Ting's Herbal Journey
Heroic: Stormstout Brewery
Keep Rollin' Rollin' Rollin'
Hopocalypse Now!
*Polyformic Acid Science (kill [npc=59479] (3rd Boss) under the effects of the potion)

Heroic: Temple of the Jade Serpent
Hydrophobia
Cleaning Up
Seeds of Doubt
*Polyformic Acid Science (kill [npc=56732] (3rd Boss) under the effects of the potion)

A new guide up for Glory of the Pandaria Hero and it's constituent achievements.
Browse the achievements instance by instance with tips on how to complete each.
Pandaria Dungeons + Scenarios Achievement Guide

Why? Because It's Red thats why.