Answer:
The correct answer is Hollow Sphere.
Answer:
Reduction
Explanation:
The oxidation reduction reactions are called redox reaction. These reactions are take place by gaining or losing the electrons and oxidation state of elements are changed.
Oxidation:
Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.
Reduction:
Reduction involve the gain of electron and oxidation number is decreased.
In given reaction fluorine gas gain two electron and form fluoride ions.
F₂(g) + 2e⁻ → 2F⁻(aq)
The given reaction is reduction because oxidation state is decreased from zero to -1.
I believe the correct answer from the choices listed above is option A. The E+ of the cell would be 2.47 V. E of the cell is given by the formula E(cathode) - E(anode) . <span>So in this case the first half cell reaction is the reaction that takes place in the cathode and the second one takes place in the anode.</span>
Answer:
The color red is physical
Hello!:
Molar mass:
HBr = 80.91 g/mol
HNO3 = 63.01 g/mol
Number of moles:
moles HBr = 1.0 / 80.91 => 0.01235 moles of HBr
moles HNO3 = 1.0 / 63.01 => 0.01587 moles of HNO3
So , total moles of H⁺ :
0.01235 + 0.01587 => 0.02822 moles of H⁺
Molarity of solution:
M = n / V
M = 0.02822 / 5.0
M = 0.005644
Therefore:
pH = - log [ H⁺ ]
pH = - log [ 0.005644 ]
pH = 2.25
Hope that helps!
