5. Which Lewis electron-dot diagram represents an atom in the ground state for a Group 13 element?
A)
B) X:
X:
C)
X.
D)
X:
+

What is the empirical formula for c4h8o2

Answer asap : ( a. how does mucus prevent the entry of pathogens? b. describe two ways white blood cells protect us from pathogens.

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.