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yeah niether had i but if the Cu completly coated the Mg then would that prevent the reaction form continuing

In a displacement reaction ie Mg in CuSO4 the copper matal is deposited on the magnesium. Would their ever be a point where the Cu biuld up completly encases the Mg preventing the displacement reation from occuring after that point.

Not sure about the equation but it does happen, the Fe(OH)Cl decomposes into HCl and other products, which can greatly accalerate corrosion. This however only happens as the article dries out so artefacts are generlly kept wet untail restoration can occur. The Fe(OH)Cl is removed by soaking in...

Metals, mainly iron artefacts are place/soaked in NaOH solution (approx 5%) as the OH- ion reacts with the insoluble Fe(OH)Cl to form Fe(OH)2 and CL- the Cl- ion is then removed when the solution is refreshed. If left in the artefact nad allowed to dry out, the Fe(OH)Cl decomposes to form HCl...

If you want to know the extent that they want answers too have a look at the standards package for each subject. http://arc.boardofstudies.nsw.edu.au/go/hsc/std-packs/ They show sample band 1 to 6 answers and then a top of the range ie full marks answer. The standard of the drawings is...

You cant actually access the AS1100 standards on the net unless a liscence has been purchased by a company/organisation. The standards can be purchased through a distributor, search "Australian Standards" in google. I think that schools can apply for an exemption to gain access. I got my hands...

Hey Does anyone know where you can get a copy of the AS 1100 teach darwing starndards from cos i cant find them.

If the pressure increase in the same volume then there are more moles of the reactants and the products. If there is an inequal ammount of moles in either side then the reaction will move in favour of the side with less moles. The same applies to redcuing pressure. Tempature increases the...

The reason the guys on bondi rescue don't get along with the local volunteers is because they get paid for it, they see them selves as paid professionals not a bunch of people off the street. As a Volunteer SUrf Life Saver in newcastle i think that it is a pitty that up until this year life...

i've done Go-Gyu-Ru for 3 years and 7 years in another style. I agree a kata is only a set of movements that can be used. However the applications of kata are those that one would use in a fight. Not the kata themselves.