Calculate the pH of a buffer that is 0.035 M HF and 0.035 M NaF. The Ka for HF is 6.8×10-4.

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

Which of these conditions most likely produces an unstable isotope?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.