The percent composition of what? It should ask to find the percent composition of one of the parts like copper, sulfer, or water.
I'm gonna assume you mean copper
Copper<span> is a chemical element with symbol Cu (from Latin: cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure </span>copper<span> has a reddish-orange color.</span>
Answer: The actual free-energy change for the reaction -8.64 kJ/mol.
Explanation:
The given reaction is as follows.
Fructose 1,6-bisphosphate
Glyceraldehyde 3-phosphate + DHAP
For the given reaction,
is 23.8 kJ/mol.
As we know that,

Here, R = 8.314 J/mol K, T = 
= (37 + 273) K
= 310.15 K
Fructose 1,6-bisphosphate =
M
Glyceraldehyde 3-phosphate =
M
DHAP =
M
Expression for reaction quotient of this reaction is as follows.
Reaction quotient = ![\frac{[DHAP][\text{glyceraldehyde 3-phosphate}]}{[/text{Fructose 1,6-bisphosphate}]}](https://tex.z-dn.net/?f=%5Cfrac%7B%5BDHAP%5D%5B%5Ctext%7Bglyceraldehyde%203-phosphate%7D%5D%7D%7B%5B%2Ftext%7BFructose%201%2C6-bisphosphate%7D%5D%7D)
Q = 
= 
Now, we will calculate the value of
as follows.
= 
= -8647.73 J/mol
= -8.64 kJ/mol
Thus, we can conclude that the actual free-energy change for the reaction -8.64 kJ/mol.
The digestion system starts in the mouth ( physical digestion) ........