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I am having trouble understanding concepts of the anode and cathode in an electrochemical cell where current is passed through dilute solutions. A galvanic cell's anode is negative and cathode is positive, but in an electrochemical cell where current is supplied the anode is positive and cathode...

what is a 'passivating metal'. I havent heard of this term until recently.

would an american nstc game work on a pal playstation / tv. I have heard different things: that graphics would be poor, gameplay slower, black and white (no colour). Secondly is there any way a pal playstation or pal tv can be configured to allow the use of these games.Thanks.

how would it effect your uai if you did crap in the 'area of study' paper and good in the english advanced paper if you were in Advanced English, because aren't they scaled differently. Would this have a great impact on your UAI?

what would be the answer to this question? what is the main source of sulfur dioxide and NOx's by human activity? a) Smelting of metal ores b) Combustion of fossil fuels c) motor vehicles

can someone show me how to do a question like this? Find the minimum concentration of 0.01 mol/L of HNO3

hi can anyone show me some simple calculation questions from this topic, such as gas volume, titration conc. thankyou

hi, im having lots of trouble drawing polymers, i understand the concept, but i always just dont know where to start when drawing them. I get the less complicated ones such as polyethene but what about big confusing ones...where do i start?

what is a bronsted lowry acid or base and how can you work it out if it is a multiple choice question.

Can someone show me how to work any of these out? 1) y= x^2-10x+5 (complete the square) 2) x^2-5x+ 6=0 (find roots of quadratic equation) 3) y=x^2-4x-10 (sketch parabola) 4) gradient function of curve is f'(x) = 6x^2-6x-12 ... find the values of x for which the...

i need help with this question... A manufacturer of X brand soft drink surveyed a city and found 31 people like X drinks best, 19 liked another brand better and 5 did not drink soft drink. If any two people are selected at random from that city, find the probability that a) one person...

Can someone show me how to work this out using the two odds four evens method (not starting from y0) Using simpsons rule with 5 function values find an estimate for the area underneath the curve y=2^x from -1 to 3.

On the curve y= x/e^x find the point of inflection and sketch it. Can someone show me how to work this out, thanks.

Show that x-6/x-1=1-5/x-1 hence find x-6/x-1 the answer is x-5lnx-1 but i dont know where the first x comes from?

1) find the equation of the tangent to the curve xsquared = -2y at the point (4,-8) . Tangent meets directrix at M. Find M's cordinates. 2) ( 3 4x + 1/ 2x^2 +x+1 (evaluate to 1 decimal place) )0 3) find the volume of the solid formed when the curve y=...

I need help with this question... Find the equation of the tangent to the curve xsquared=2y at the point (4,-8). This tangent meets the directrix at point M. Find co-ordinates of M. so far i have an equation 4x+y-8=0....where do i go from here, if that is correct.

1) In a throw of two dice, find the probability of scoring more than 6. 2) ABC is a triangle in which B= 135 deg A= 30 deg and b = 10cm ; find a in surd form 3) Find the equation of a straight line which is perpendicular to 3x - 2y -7 = 0 and passes through ( 2, -1 ) any help in...

how do you write a compound when it is something like iron (III) oxide. Does the (III) mean number of oxygen atoms in this case? , and is this the same for all compounds like this? Does this have any relation to oxidation numbers?

1) calculate the theoretical mass of ethanol required to heat 200ml of water from 21.0 degrees c to 45.0 degrees c. (ethanol 1367 KJ/ mole) 2) Calculate the volume of gas produced at 25 degrees c and 100kpa by the reaction of 0.56 g of zinc with 200 ml of hydrochloric acid. if anyone could...

how much does the rank of your school and how people go in your class affect your uai? Say if you end up coming 3rd/4th or 5th in a class that is heaps spread apart in marks with 1st getting 90, 2nd 85 3rd ,83..etc..with 12th getting 48 in the HSC. How are you likely to go then with your...