Search results

sry, whats question 1? water can to form ?

yeh, Which 2 of the following would be bonded by cordination covalent bonds

oic

water evaporation can also be one... Flame caused some of the water vapours to evaporate, making water cooler than it should be.

1) Which 2 of the following are bonded by co-ordinate covalent bonds Methane, Ammonia, Water and HF [1mark] 2) What are the 2 fractions from which ethene is made? [1mark]

lol, like ur analogy.. i get it now

yeh i dun get that... how would more sample allow greater accuracy.. and i dunno how it relates to standard solution..they're separate things

really?.. so do u jus move the ester linkage left and right to obtain the isomer? okay thx what abt question 2?

[1] Are there isomers for esters? if so, name an isomer for propyl propanoate [1mark] [2] During your HSC course, u used gravimetric analysis to analyse sulfate content of lawn fertilisers. Student A used 2 grams of fertiliser, precipitated it and found the percentage composition of sulfate...

it says Na2X though...

hello?

3) A household cleaning agent contains a weak base of general forumla Na2 X. 1.59g of this compound was dissolved in 100 ml of water. A 20ml sample of the solution was titrated with 0.25 mol/L HCl and required 24ml of the acid for neutralisation. a) write neutralisation equation between Na2X...

yeh, buh i think they're talkin abt domestic prices, not world price.. btw.. do u no why we have heavy tariffs on our motor industry and textile industry?? ...... Also, whats the commodity price boom? and whats the resourses boom?? all these terms not related to syllabus is driving me...

A loan of $P at an interest rate of R per month is repaid over n monthly instalments of $M a) show that M - (M+P)K^n + P K^(n+1) = 0 where K = 1+R b) Suppose that i can afford to repay $650 per month on a $20000 loan to be paid back over 3 years. Use these figures in the equation above...

me too ;)

let say dV/dt = 2t^2 + 77 t + 3 and u want to find the greatest change in volume.. can u do d2V/dt2 in this case to find the greatest value? wouldnt that mean acceleration though?

oh,so differention of linear funtions won't help you solve max/min problems?.. what if that differentiation equation was a very complicated quadratic .. would d2V/dt2 work to find the greatest change of rate?

omg, economics have always been a double edged sword.. how do u no this occurs instead of that? i mean , why wouldn't reduced market price be smaller than the small increase in expenditure

wel, it says in leading edge textbook that subsides reduce prices and lower inflation ... But i thought subsidies are payments made by government to domestic markets.. so its expenditure.. so it'll have eco growth.. and thus higher inflation

let say you're given the differential equation dV/dt = -120 +2t thats the rate at which the volume decreases .. and you're asked to find the fastest rate at which the volume decreases .. so i differentiate it again .. d2V/dt2 = 2 .. so fastest rate should be at 2 second.. however...