How many protons, neutrons, and electrons are in an atom of “SK? 24 protons, 19 neutrons and 19 electrons
19 protons, 19 neutrons, and 24 electrons
19 protons, 19 neutrons, and 19 electrons
19 protons, 24 ne lyons, and 19 electrons

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

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.

Rays from the sun are not considered matter true or false