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inn [45]
3 years ago
7

If you were preparing a defined, minimal medium for an aerobic, chemolithotrophic bacterium to grow on, which of the following c

onstituents could not be utilized and would have to be substituted in order for it to synthesize organic molecules?
a. NaCO3
b. NH4SO4
c. K2HPO4/KH2PO4
d. Fe2+ and MgCl2
e. None of the above would have to be substituted.
Chemistry
1 answer:
Eddi Din [679]3 years ago
7 0

Answer:

I believe it's D. FE2+ and MgCl2...

Explanation:

Hope this helps!!

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A polar covalent bond will form between which two atoms?
Alex_Xolod [135]

Types of Bonds can be predicted by calculating the difference in electronegativity.

If, Electronegativity difference is,

 

                Less than 0.4 then it is Non Polar Covalent

                

                Between 0.4 and 1.7 then it is Polar Covalent 

            

                Greater than 1.7 then it is Ionic

 

For Be and F,

                    E.N of Fluorine          =   3.98

                    E.N of Beryllium        =   1.57

                                                   ________

                    E.N Difference                2.41          (Ionic Bond)


For H and Cl,

                    E.N of Chorine           =   3.16

                    E.N of Hydrogen        =   2.20

                                                   ________

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For Na and O,

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                    E.N of Sodium          =   0.93

                                                       ________

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For F and F,

                    E.N of Fluorine          =   3.98

                    E.N of Fluorine          =   3.98

                                                        ________

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Result:

           A polar covalent bond is formed between Hydrogen and Chlorine atoms.

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