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hey iam finding that its very hard to determine the colour that iron (II), iron (III) and copper cations will go when e.g. barium nitrate is added (bascially a nitrate is added). i chose barium because it has low electronegativity so it should be reactive my belief is that copper nitrate is...

Anyone know of a resource of something where i can get practice on writing equations? Preferably ones relevant to syllabus... cheers

there doesn't seem to be any suggested visual texts to study about 'change' on here if anyone has any suggestion it would be very appreciated thanks!

Just seeing if anyone had any suggestions for a few things in an english assessment. Area of study - change 1. Visual text 2.a poem or song 3. a web page 4. one film 5. feature article we have to respond to all of these by analysing up to 500 words each. so yeah just wondering if anyone has any...

Hey all, im doing this year, extension english and maths. Im the only person in 250 doing that lol freaks me out a bit lol anyone else doing this?

in the non-calc section how do u work out - (3x104)x(2x10-6) lol im good at asking questions on here *the 4 and -6 are indices (to the power of) THANKS for help :D

wat do u think best way to study for maths? online multiples or wat?

Brendan conducted an investigation in which he: •mixed two solutions •filtered the precipitate which formed •placed some of the solid into a crucible (labelled N) •heated the crucible with a Bunsen burner (labelled M) to dry the solid. (a)Explain why the crucible (labelled N) is a more...