Recent content by needhelpperson

thanks for your time. This was all my teacher's fault. He didn't give us the correct question. It was (ax+b)/(x^2-c). Wow what a waste of time. I solved it anyways though, and again thanks for all your time.

f(x) = (ax+b)/(x-c) has the following properties i) the graph of f is symmetric with respect to the y-axis ii) lim x->2^+ f(x) = + infinite iii) f^prime (1) = -2 a) Determine the values of a, b and c. i think c = 2 derivative of f(x) = (-ca - b)/(x-c)^2 so f^prime(1) = -2...

f(x) = (ax+b)/(x-c) has the following properties i) the graph of f is symmetric with respect to the y-axis ii) lim x->2^+ f(x) = + infinite iii) f^prime (1) = -2 a) Determine the values of a, b and c. i think c = 2 derivative of f(x) = (-ca - b)/(x-c)^2 so f^prime(1) = -2...

How do i solve this? I wasn't given any examples at all. But I've tried to do this. Iab + Iad = Ibc + Idc <--------- they have to or else Kirchoff's law violated. so Vab = Vad but I'm not sure if Vbc = Vdc? i'll continue assuming Vbc = Vdc Vab/40 + Vad/20 = Vbc/70 + Vdc/50...

How do i solve this? I wasn't given any examples at all. But I've tried to do this. Iab + Iad = Ibc + Idc <--------- they have to or else Kirchoff's law violated. so Vab = Vad but I'm not sure if Vbc = Vdc? i'll continue assuming Vbc = Vdc Vab/40 + Vad/20 = Vbc/70 + Vdc/50...

You're awesome at this stuff, can i add you to my msn, so that i can email some questions when i need help on them?

Thanks a lot. But how could you tell that hypochlorite will oxidize the sulfide from thiosulfate? It's stuff like this that we don't learn. He just gives us the equations and we don't understand the stuff. I hate this teacher so much... But thanks for your help though. I appreciate it. As...

What is the net ionic equation for the reaction of 0.5M solution of sodium hypochlorite and 0.5M solution of sodium thiosulfate? Calculate the enthalpy change. I have a very terrible chemistry teacher. I haven't learned how to write ionic equations yet, but he wants this assignment for marks...

Is the CO3(2-) carbonate ion polar or nonpolar? I know its a triagonal planar but it also has the double bond. please help.

Under special conditions, sulfur reacts with anhydrous liquid ammonia to form a binary compound of sulfur and nitrogen. The compound is found to consist of 69.6% S and 30.4% N. Measurements of its molecular mass yield a value of 184.3 g/mol. The compound occasionally detonates on being struck or...

Under special conditions, sulfur reacts with anhydrous liquid ammonia to form a binary compound of sulfur and nitrogen. The compound is found to consist of 69.6% S and 30.4% N. Measurements of its molecular mass yield a value of 184.3 g/mol. The compound occasionally detonates on being struck or...

need help urgent, due tomorrow! Do you expect the element rhodium, symbol Rh, to have positive ion states in which the metal ion has a noble-gas configuration? Use ionization energies and lattice energy to explain your answer. I don't know where this question is trying to get at. Is it...

Help please, due tomorrow! Do you expect the element rhodium, symbol Rh, to have positive ion states in which the metal ion has a noble-gas configuration? Use ionization energies and lattice energy to explain your answer. I don't know where this question is trying to get at. Is it trying to...

Need help urgently, due tomorrow... When metal oxides react with water, the oxygen generally ends up as the hydroxide ion, separate from the metal. In contrast, when nonmetallic oxides react with water, the oxygen ends up as part of the nonmetals species. What connection is there between this...

When metal oxides react with water, the oxygen generally ends up as the hydroxide ion, separate from the metal. In contrast, when nonmetallic oxides react with water, the oxygen ends up as part of the nonmetals species. What connection is there between this contrasting behaviour of metal and...