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galina1969 [7]
4 years ago
14

Wich contains more humus topsoil or subsoil on number 18.

Chemistry
1 answer:
Nitella [24]4 years ago
6 0
Topsoil  because  plants and decaying animals add more humus to the soil
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Determine if the bond between each pair of atoms is pure covalent, polar covalent, or ionic. drag the appropriate items to their
dsp73

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 Pure Covalent

                

                Between 0.4 and 1.7 then it is Polar Covalent 

            

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For Br and Br,

                    E.N of Bromine      =   2.96

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For N and O,

                    E.N of Oxygen      =   3.44

                    E.N of Nitrogen     =   3.04

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For P and H,

                    E.N of Hydrogen       =   2.20

                    E.N of Phosphorous  =   2.19

                                                              ________

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For K and O,

                    E.N of Oxygen          =   3.44

                    E.N of Potassium      =   0.82

                                                   ________

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3 years ago
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Answer:

i and ii

Explanation:

In the aerobic oxidation of glucose, the electrons formed are transferred to O2 after several others transfer reactions like passing through coenzymes NAD+ and FAD

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