tempo

I'm thinking in circles and would appreciate somebody's help. Firstly, is electromagnetic radiation matter? Secondly, would it make sense for a scientist to say that non-matter can interact with matter? Cheers

ah ok, i understand now.. thank you so much for writing that up.

what would you do to improve the NHS?

yeh that makes sense ^ would you also know why the halogens get darker as u go down the group? as the shells further out are being filled, and the energy jump between the further shells is smaller, i would have thought that the halogens would go from violet to red as u go down the group, as the electrons would only need a small amount of energy (hence related to red as opposed to violet) to move to a higher energy level before releasing this energy again.

hey, why do the colours of the halogens change from Fluorine to Iodine?

Actually I think it will be 50-50. 50.4451 ml of DCPIP and 49.6649 of water to be exact. Is this correct? Please...

i'd like it accurate please, so that i can get good marks for my titration investigation

I have a DCPIP solution of 3.37*10^-3 M I need it to be 1.7*10^-3 M I want 100ml of it. So how much water and how much of the 3.37*10^-3 M DCPIP do I have to put in. Also, anybody know a website or formula so I know for next time... Thanks a lot. By the way, 3.37/1.7=1.98235 and 1.7/3.37=0.504451

Which are the few cells programmed to die i.e. how are they chosen?

Thanks for the answers.

Why does programmed cell death occur? Why do all cells have a death wish? Out of interest, what happens when cells die? The first 2 qns are cambridge interview qns

thanks i did just that and it helped.

Thanks RyanJ...

A finite number divided by nothing (zero) is infinity. A finite number divided by infinity is nothing (zero). Therefore, nothing multiplied by infinite equals a finite number.