Answer:

Explanation:
(a) Balanced equation
2HCl + Ca(OH)₂ ⟶ CaCl₂ + 2H₂O
(b) Moles of Ca(OH)₂

(c) Moles of HCl

(d) Molar concentration of HCl

The molar concentration of the HCl was 
Explanation:
a. Adding a catalyst
no effect
.( Catalyst can only change the activation energy but not the free energy).
b. increasing [C] and [D]
Increase the free energy
.
c. Coupling with ATP hydrolysis
decrease the free energy value
.
d.Increasing [A] and [B]
decrease the free energy.
Answer:
choice 3
Explanation:
homeostasis is the ability of an organism to remain in balance so for two systems two show homeostasis pick the choice that shows two separate systems working together for a common goal in this case breathing.