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I am a 2012 HSC graduate who provides extensive guidance to students in years 11 and 12 in all levels of mathematics. Achieved an ATAR of 95.2. I offer tutoring mainly in the courses of: Math adv (2 unit) Math ext-1 (3 unit) Math ext-2 (4 unit) Completed HSC with all E4s in extension 1 and 2...

As i said the copper only gets oxidised with Ag as the other electrode, i.e copper is the anode and silver is the cathode. The reason copper will be oxidised in the setup with Ag, is that it has a more positive oxidation potential than silver. When a more reactive metal is used instead of Ag...

This is a tricky question and im convinced that the answer provided is incorrect. The trick here is the "sodium sulphate solution". i.e it is a galvanic cell with copper as an electrode and another metal as the other electrode (the unknown) with an electrolyte containing Na+, SO4- AND H2O. In...

The time of flight is independent of the velocity of projection because it depends only on the height and gravitational acceleration.

What type of functions? (inverse, polynomials, etc)

As for Q7 the answer must be citric acid, as the reaction does not go into completion with the NaOH. The weaker the acid, the more base is needed to change the colour of indicator. (compared to sulfuric acid where the reaction is complete).

^right right didnt see that.

It's definately D mate...