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10. Match the following

 

        A                                                                    B

 

Body fluid component                                           Cu2+

Heme respiratory carrier                                       Ca2+

1.5 to 2% of body mass                                         Na+

Muscle and nerve control                                      K+

Cofactor in enzyme, e transfer                              Co3+

Vitamin B12                                                            Fe2+

Heart muscle function                                           Mg2+

  1. Use the localized electron model to describe the bonding in hydrogen cyanide and

       Phosgene (COCl2). 


1.     Give one example of a compound having a linear molecular structure that has an overall dipole moment (is polar) and another example of a linear molecule that does not have an overall dipole moment (is non-polar). Do the same for molecules that have trigonal planar and tetrahedral molecular structures.


1.     Describe the type of bonding that exists in the F2(g) molecule. How does this type of bonding differ from that found in the HF(g) molecule? How is it similar?


1.     Does a Lewis structure tell which electrons come from which atoms? Explain.


How many oxygen atoms are present in 2.5 moles of acetic acid, CH3COOH?


a can of soda contains 5.9 x 10^5 J of energy, while a slice of pizza contains 1.2 x 10^6 J. if you drink a six pack of soda and eat five slices of pizza during a san antonio spurs basketball game, by how many calories did you exceed the required daily intake of 2,000 calories per day?


If 80cm cube of methane (CH4)diffuses through a porous membrane in 20 seconds while 50cm cube of gas Q diffuse through the same membrane in 25 seconds.Calculate the molecular mass of gas Q


To what temperature must a given mass of nitrogen at 0oC heated so that both its volume and pressure will be doubled?

Graphite is a covelent molecule but a good conductor of electricity. Explain