Answer:
wind..........................
the answer is "There is an outside energy source." in voltaic cells, there is not need of an external source of energy because they involve spontaneous reactions.
in both types of cells, the electrons move from anode to cathode, the anode is where oxidation takes place and cathode for reduction (an ox, red cat). also both have two half reactions.
The liquid being blue in colour is qualitative data because it was observed not measured
I believe the correct answer would be barium. It is the element between the two that would lose one electron more easily. This is because it has a higher first ionization energy which means the that the probability of it existing as an ion would be higher than magnesium.
Answer:
This is True
Explanation:
When a chemical reaction occurs, molecular bonds are broken and other bonds are formed to make different molecules. For example, the bonds of two water molecules are broken to form hydrogen and oxygen. Energy is always required to break a bond, which is known as bond energy.