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Which arthrokinematic motions occur during closed kinetic chain knee flexion and in which direction?

Which two compounds contain ionic bonds:  SO3 ; N2;  NaF; CCl4;  LiCl; BF3;  HBr

The following is a correct ground state configuration for the ion of Cr3⁺.

A sample of calcium is burned in oxygen to form calcium oxide. What mass of oxygen in grams is consumed if  72.16  g calcium oxide is formed from 40.16 g calcium?

The following ion will have a noble gas configuration:

0ne S2- ion has [electrons]electrons;                   one 120Sn4+ ion has [neutrons],  neutrons; [electrons2] electrons

Draw a Lewis dot structure for the formula unit of ionic compound between atoms of Ca and N and provide the formula based on the structure.  Upload the picture of the Lewis dot structure for additional 2 pts grade along with the other required ones to the  Exam 2 Solutions (Lewis Structures), Extra Credit and Partial Credit assignment after you submit your exam.

Calculate the molar mass of dimethylnitrosamine, (CH3)2N2O in g/mol

Which ligament limits knee adduction?

Which of the following is a correct description of the electron location?