Answer:
A voltaic cell
Explanation:
A voltaic cell is a device which converts chemical energy to electrical energy. The chemical reactions that take place inside the cell causes electrons to flow from anode to cathode hence, electricity is produced. A simple voltaic cell is made by placing two different metals in contact with an electrolyte separated by a salt bridge. The cathode is the negative electrode while the anode is the positive electrode. It is also called a galvanic cell.
In a voltaic cell having a copper/copper solution half cell, reduction occurs at the cathode. Hence, at the cathode copper II ions accept two electrons and become reduced to ordinary metallic copper. This causes the blue colour of the solution to become discharged (fade) as the cell continues to function.
Answer:
K2CO3 (aq) ---> 2K+ (aq) + CO32- (aq)
Explanation:
Dissociation refers to the ability of an ionic compound to breakdown into its respective ions. An ionic compound is formed by the combination of a positive ion (cation) and a negative ion (anion). When these ionic compound dissolves in water, it dissociates i.e. separates into its constituent ions.
In this question involving potassium carbonate being described as a strong electrolyte, which means that it dissociates completely in water as follows:
K2CO3 (aq) ---> 2K+ (aq) + CO32- (aq)
Answer:
Sodium Carbonate is more soluble.
Explanation:
chlorine take longer to dissolve
