The answer would be B) Absolute time.
Answer:
Pb(s)------>Pb2+(aq)
Explanation:
If you look at the oxidation numbers Pb increases from 0 to +2 while Cu decreases from +2 to 0.Hence,Pb is the reducing agent and Cu2+ is the oxidizing agent.
Also, a thing to note is that the oxidation number of any solid is always 0.
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Explanation:
They are called consumer testing or comparative testing, is a process of measuring the properties or performance of products. ... Product testing might be accomplished by a manufacturer, an independent laboratory, a government agency, etc. Often an existing formal test method is used as a basis for testing
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In a solid state, the molecules have the least amount of energy. They just stick close together and vibrate in place. As the molecules gain more energy, they are able to move around more freely. In the liquid state, the molecules have enough energy to sort of tumble over each other.
The enthalpy of combustion of propane is -2202.0 kJ/mol.
The enthalpy of combustion is released when one mole of compound is burned in the presence of excess oxygen. The bonds between carbon and hydrogen in the compound are broken and bonds between carbon and oxygen are formed as well as bonds between hydrogen and oxygen are formed.
