When a 5.00 g 5.00 g sample of KCN KCN is dissolved in water in a calorimeter that has a total heat capacity of 1.95 kJ ⋅ K − 1 , 1.95 kJ⋅K−1, the temperature decreases by 0.460 K . 0.460 K. Calculate the molar heat of solution of KCN .

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How many orbitals does the p sub shell container

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false