Easy which of the following best describes the freezing of water?
negative change in enthalpy, low temperature and positive entropy
negative change in enthalpy, low temperature and negative entropy
positive change in enthalpy, low temperature and positive entropy
positive change in enthalpy, low temperature and negative entropy
negative change in enthalpy, high temperature and negative entropy.

When a nucleus absorbs a neutron and then breaks apart, there are many products of the reaction. what is not a product of a nuclear fission reaction

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.