When a voltaic cell operates, ions move through a salt bridge. The presence of the salt bridge completes the circuit because it promotes ion flow. It maintains the charges balance since the electron are moving from a half cell to another.
Answer: The reaction will shift in left or backward direction.
Explanation:
Any change in the equilibrium is studied on the basis of Le-Chatelier's principle. This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.
For the given equation:

As the given reaction is exothermic as the heat is released in the reaction. When the temperature is raised , the reaction will shift in a direction where temperature is decreasing and that is the reverse reaction which is endothermic in nature.
Thus the reaction will shift in left or backward direction.
Answer:
well, it increased by 40 km/hr in 9 s, so the acceleration is
40/9 km/(hr-s)
Explanation:
Answer:
The structure is shown in the diagram.
Explanation:
Lewis structure : In order to draw Lewis structure we will calculate the total number of valence electrons in the molecule.
The valence electrons from Cl : 7
The valence electrons from O = 3 X 6 = 18
Charge negative so more electrons = 2
total electrons = 7 + 18 +2 = 27
Now we will distribute the electrons on each atom and in between atoms as shown in the diagram.