There is no energy in this reaction
Answer:
The half cell reaction when it used as an anode
H₂(g) → 2 H⁺ + 2 e⁻
Explanation:
Standard hydrogen electrode used as reference electrode & acts as an cathode as well as anode half cell.
The half cell reaction when it used as an anode
H₂(g) → 2 H⁺ + 2 e⁻
(Pressure should be 1 bar , temperature 273 k and concentration of HCl = 1 Molar)
Cell representation
H₂(g) , H⁺(1 M)
The standard electrode potential i.e oxidation as well as reduction = 0.00 V
Moss can grow abundantly in an environment with favorable conditions. They usually grow abundantly in cool, moist and dark places. If not dark, they prefer shady areas. Also, they tend to grow in acidic soil with pH range between 5.0-5.5.
During photosynthesis green plants use solar energy to produce fuel hence 'Energy in the form of sunlight must be added' that is option D is the correct option.
<h3>Why is photosynthesis an endothermic reaction?</h3>
Photosynthesis is an endothermic reaction because green plants use solar energy in the form of sunlight, along with water and carbon dioxide in the air, to produce their food in the form of glucose.
Endothermic reactions are chemical reactions where the reactants utilize heat energy from the surroundings to form products.
Since energy as sunlight is used in the photosynthesis reaction, 'Energy in the form of sunlight must be added' that is option D is the correct option.
Refer the following link to know more about photosynthesis:
brainly.com/question/1388366
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The main formula is
% = molar mass of elements / total molecular molar mass) x100
<span>M (Ca(C2H3O2)2) = 2*(12*2 +3*1+16*2) + 40=158
so
</span>%Ca= 40/158<span>x 100=0.25</span><span>x 100= 25%
</span>
%C= 12/158 x 100= 0.07x 100=7%
%H= 1/158x 100=0.006x 100=0.6%
%O=16/158x 100= 0.101x 100= 10.12%