The substance which is a combination of different atoms is a compound.
Can cause a chemacal reaction
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Scientist rely on their estimates when they cannot obtain on exact numbers
Explanation:
The given reaction equation is as follows.
The value of
= 59.1 kJ/mol
We know that
,
or, 
= -(\frac{59.1 kJ/mol}{(8.314 \times 10^{-3} kJ/mol.K \times 310 K))}[/tex]
= -22.93
or,
=
Therefore,
=
= 
Therefore, we can conclude that the value of
in the intestinal tract is
.