Recent content by +Minkie+

Just been reading the endosymbiotic theory link and I'd like to point out; "We will never be able to turn back the clocks, thus we will never be absolutely sure of the correct answer."

Thankyou for the links. In the first though there is constant reference of billion years! The universe is only 6000MYA not 1*10^12, anyone know why this is?

Why don't you just give away the answer

For the first few questions n=M/m is your equation. n= # of moles M= mass in Kg m= molecular mass (sum of neutrons and protons) Not to sure about the molecule and particle questions. I'm pretty sure there is 6.02*10^23 atoms in 1 mole.

2Na^x +(CO3)^2-=Na2CO3 Ok what we know from the equation; CO3 has a charge of 2- Two sodium ions are required The net overall charge of Na2CO3 is 0 Things should be clearer now

Pretty creepy stuff! Do you know if the descendants are furtile?

I see how my thinking was wrong, it was worth a try though. :biggrin: Imagine proving Einstein wrong:biggrin:

If you look closely at your equation, and the charges already given, your answer should spring to life!

What I'm getting at is if that were true wouldn't it prove E=MC^2 wrong? As the Fe nucleus would have more energy but less mass than the nickel nucleus.

Ya well I can't think of anything else, so I think it may be the textbook. They don't get proof read very well so it is quite likely.

Possibly referring to when electrons are lost negative charge is lost, hence the atom they were lost from gains a positive charge. I don't know why this would apply to the electrodes though, only the ions.

Back on topic now. Why would mitochodria/chloroplasts have independently evolved? Can they store the products of their reactions by themselves?

It does matter. In a galvanic cell the cathode is positive and the anode is negative. In an electrolytic cell the cathode is negative and the anode is positive. So we need to know whether your producing electricity from a cell, e.g. a battery. Or putting electricity into a cell, e.g...

Yes I know, but if its really that simple why does such a small half-life (in terms of dating fossils) have a +/- 40 years? What kind of discrepenses can we expect for things such as Potassium with a half-life of 1.25billion years? Now can you explain why we would think the rate of mutation...

So a heavier nucleus, not too much heavier, may have less overall binding energy than Fe? Say Nickel compared to Iron?