The Chemistry challenge is now closed. Here are the entries:

Doctor Who: Recipe: Castrovalvan Cordial by lferion
Chemistry: H2O: Just Add Water: Beaded Art: Bookmark by argentum_ls
Star Trek Enterprise: Fanfic: Damage Control by mareel
The Walking Dead (tv): Fanfic: Protective by hellkitty
Agent Carter: Fanfic: The Mother of Invention by sholio
Revolutionary Girl Utena: Fanart: This Moment by demihime
Original: Fic: Reactions (SFW) by wallwalker
Hamlet: Fanfic: Volatile by ardyforshort
X-Men First Class: Fanfic: Chemistry by clarasteam
XMFC: poem: Limerick by daria234
Sherlock: Fanart: Footprints by lothiriel84
Original: Fic: Elements of Danger by scfrankles
How To Get Away With Murder: Fanfic: The Survival Instinct by mihnn
MCU: poem: that other mine by daria234
The Fosters: Fanfic: Remember Me by mihnn
Scorpion: Fanfic: The Definition of Chemistry by mihnn
X-Men: Fan Fic: Some Chemistry by katleept
One Piece: Fanfic: Back Together by u_evangeline
Fullmetal Alchemist: Fanfic: Rising Flame by badly_knitted
Doctor Who: Fanfic: Chemistry Is A Plus by wavingkilts
Red Dragon: Fanfic: Perfect Solution by thesmallhobbit
Agents of S.H.I.E.L.D.: fanart: Fitzsimmons by elen_nare
White Collar: Fic: Master Con 101 by treonb
Supernatural: Fanfic: Group Winchester Reactions by lt_indigo
Gotham (TV show): fanfic: Undeniable by love_jackianto
Marvel: Fanfic: The Study of Change by endeni
The Silmarillion: Fanfic: Love Sick Fools by brookeoflorien

Also, congratulations to those who earned name tags and achievement badges this round:

eggplantlady earned 10 Fandom Spread, 12 Challenge Streak and 12 Posted Works
elen_nare earned The Yulegoat (GOLD) and The Superintendent of Sci-Fi (GOLD)
lt_indigo earned Comeback Kid, Minister of Eros and Female Characters

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Thank you to everyone who participated! You're now free to post your entries to your journal or wherever else you'd like. If you're archiving on AO3, you can add your work to our fan_flashworks collection there.

New challenge is on its way.