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For the balanced chemical equation  N2  +  3 H2  —–>   2 NH3, the molar ratio for H2 and NH3 is 3 mol H21 mol NH3{“version”:”1.1″,”math”:”3 mol H21 mol NH3″}.

Which set of coefficients balances the equation MgO   —–>  Mg  +  O2 ?

Select all of the following that are characteristics of a channel protein.

Select all of the following that are characteristics of an ion pump.

The center (middle) of the lipid bilayer is

Select all that are part of the peripheral nervous system.

Calculate the molar mass of the diol with the chemical formula CH3(CH2)5CHOHCH2OH.   

Select all that are part of the central nervous system.

Fill in the blank. The theory that all tissues are composed of microscopic units called cells is called ____________.

The formula mass or molar mass of a chemical compound is the sum of the average atomic mass for each atom of each element in the chemical compound.