mathew -b

Hi, can you tell me what is needed to ionise the O^6+ ion further in order to turn it into an O^7+ ion ? Thanks.

can you tell me how the beta-plus decay process may be understood (i) at the level of individual nucleons and (ii) at the level of quarks, by writing a decay reaction in each case.

What is the redshift of a galaxy which lies at a distance of 50 mpc, asssuming that the hubble constant is H_0 = 67 km s^-1 Mpc^-1? assume that the speed of light is c=3.0x10^5 Km s^-1 please answer to an accuracy of 2 sig figs. Thankyou.

what is 0.0113 to 2 sig figs please

where you would find dendritic spines and what their role is in neuronal communication?

how would i express the following answer in eV and to an appropriate number of significant figures? E=-(k/n2) n = principle quantum number k = 1.312 x 103 kJmol-1