The balanced half-cell equation for the reaction occurring at the anode is H2 ---> 2H(+) + 2e(-)
E<u>xplanation:</u>
- The balanced half-cell equation taking place at the anode is explained below
- The product produced in the reaction in the fuel cell is water.
- H2 ---> 2H(+) + 2e(-)
- In the above reaction, the oxidation state of hydrogen switches from 0 to +1.
- It is becoming oxidized by delivering two electrons at the anode.
- In the fuel cell, hydrogen molecules get oxidized to hydronium ions.Thus half-reaction is the oxidation reaction.
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In the first law of thermodynamics, it states when heat is converted into energy, where as the total energy in the room could transform into another but can never be created or destroyed. If you release 258J of energy in the room, 258J would also be removed from the food according to the isolating system.
Your answer would be 258J.
In order to determine if the ion is positively charged or negatively charged
Answer:
The process of dissolving can be endothermic (temperature goes down) or exothermic (temperature goes up).
When water dissolves a substance, the water molecules attract and “bond” to the particles (molecules or ions) of the substance causing the particles to separate from each other.
The “bond” that a water molecule makes is not a covalent or ionic bond. It is a strong attraction caused by water’s polarity.
It takes energy to break the bonds between the molecules or ions of the solute.
Energy is released when water molecules bond to the solute molecules or ions.
If it takes more energy to separate the particles of the solute than is released when the water molecules bond to the particles, then the temperature goes down (endothermic).
If it takes less energy to separate the particles of the solute than is released when the water molecules bond to the particles, then the temperature goes up (exothermic).
Explanation:
The number of carbon atoms present in any compound is equal to seven.
<h3>How do we calculate the number of carbon atoms?</h3>
Number of carbon atoms present in any compound will be calculated by using the following equation:
No. of Carbon atoms = Relative intensity of M+1 peak / Natural abundance of C13
Intensity of molecular peak = 34.76%
Intensity of M+1 peak = 2.632%
Relative intensity of M+1 peak = (100/34.76)×2.632 = 7.57%
Given that natural abundance of M+1 = 1.07%
On putting values on above equation, we get
No. of C atoms = 7.57 / 1.07 = 7.07 = 7 (approx)
Hence number of carbon atoms is 7.
To know more about mass spectrum, visit the below link:
brainly.com/question/17368088
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