Siân Elizabeth Evans
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sianyevs39.bsky.social
Siân Elizabeth Evans
@sianyevs39.bsky.social
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Assistant Headteacher leading on T&L in a school on Anglesey, Chemistry teacher, all-round geek, avid reader & enthusiastic baker! MEd and currently working towards the National MA Education (Wales) with a focus on Educational Leadership
50*5+100/25=254
December 13, 2024 at 4:05 PM
75+(7-2)*10-8+6=123
December 12, 2024 at 6:59 AM
75*6-3-1=446
December 10, 2024 at 8:23 PM
25*5-10+4=119
December 10, 2024 at 8:23 PM
50*3-9+6=147
December 1, 2024 at 10:17 AM
‪(9+4+7)*10-5=195‬
November 30, 2024 at 11:32 AM
Mae Cleddau'n wych. Gan amlaf dwi'n gwylio teledu tra bod fi'n marcio neu cynllunio gwersi, ond wnes i stopio beth o'n i'n wneud i wylio hwn.
November 26, 2024 at 7:31 PM
Rwy'n addysgu Cemeg hyd at lefel A, ond dim yn y Gymraeg 🫣
November 26, 2024 at 6:14 PM
Gwych!
November 23, 2024 at 9:19 PM
I've already answered on the egomaniac's app, but it's part of the spec for the WJEC A level. I find it helps with buffer calculations, but I'm not a fan. Same as I have an aversion to the Hardy-Weinberg equation in Biol. Don't ask me why, it just bugs me! 😂
November 22, 2024 at 10:31 PM
It's on mine 🤣
November 22, 2024 at 5:22 PM
River is a gorgeous song, and probably in my top three Christmas songs. I'm more of a fan of the Christmas carols than songs per se, so O Holy Night is my favourite.
November 22, 2024 at 5:21 PM
100+75+9-4/4=183
November 20, 2024 at 9:18 PM
Woop woop! You're here and now I don't need to go back to the birdie app!

25*(7*3)+8+5=538
November 20, 2024 at 6:24 AM
Fab! Thank you for letting me know!
November 20, 2024 at 6:20 AM
Fe ddaw dy Gymraeg nôl, paid â phoeni
November 17, 2024 at 10:18 PM
Ie mae cacs yn air sy'n eitha cyffredin yn yr ardal ma (byw ar ymyl Aberteifi) 😊
November 16, 2024 at 7:15 PM
Falle fi sy'n od!
November 16, 2024 at 4:04 PM
So if this is for bond energy calculations specifically then it's incorrect
November 16, 2024 at 12:48 PM
I deleted my posts as I was being a numpty!

Bond enthalpies: the difference between energy in and energy out, so Reactants - Products.

Enthalpy change of a reaction = Products - Reactants.

Enthalpy change of formation = Products - Reactants

Enthalpy change of combustion = Reactants - products
November 16, 2024 at 12:45 PM
Oes da nhw mailing list neu rhywbeth gyda dyddiadau unrhyw gigs?
November 16, 2024 at 11:53 AM
Rwy'n byw yn agos yn Aberteifi. Rwy'n siŵr byddan nhw'n lleol eto cyn hir 😊
November 16, 2024 at 11:34 AM
Joia heno, rwy'n siŵr byddan nhw'n wych
November 16, 2024 at 11:15 AM