Which of the following accounts for the observation that the pH of pure water at 37°C is 6.8?Answer A: At 37 ° C water is naturally acidic. Answer B: At 37 ° C the autoionization constant for water, Kw, is larger than it is at 25 ° C. Answer C: At 37 ° C water has a lower density than it does at 25 ° C; therefore, [H+] is greater. Answer D: At 37 ° C water ionizes to a lesser extent than it does at 25 ° C

it is b  srry if that not right

Explanation:

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

the maximum mass of nh3 is nh3 in grams