Answer: The correct answer is option (b).
Explanation:
A cycle in science is defined as process or phenomena which reoccurs again after a certain interval of a time.
In a set of chemical reactions where reactant is regenerated as a product in the end. This regenerated reactant will again establish the same set of chemical reactions in a same the fashion continuously.
Krebs cycle: it is cycle which occurs during in cellular respiration which starts from acetyl-Co-A enzyme. In the end of cycle energy is released with regeneration of acetyl-Co-A enzyme which will further continue the cycle.
Calvin cycle: It is cycle which occurs in chloroplast during the process of photosynthesis which starts from carbon-dioxide. In the end sugar molecule is released with regeneration of carbon-dioxide molecule which will further continue the cycle.
Hence, Krebs cycle and Calvin cycle both are cycles of chemical reaction in which start over continually.
Answer:
Mg(HCO3)2 + 2HCl → 2CO2 + 2H2O + MgCl2
Explanation:
Mg(HCO3)2 + 2HCl → 2CO2 + 2H2O + MgCl2
The solvation is the process that causes the dissolution of ionic solids, because the energy released compensates for the energy required to break the Crystal network. <span>Occurs only with polar solvents. </span><span>The solvation in which the solvent is water is called hydration.
hope this helps!</span>
Something that’s strange or doesn’t happen often
in a sentence “ in all his travels he studied only the phenomena of nature and life
Answer:
= 3/4
Explanation:
Half life is the time taken by a radioactove element to decay by half of its original mass.
The half life of tritium is 12.3 years , therefore it would take 12.3 years for tritium to decay to a half its original mass.
Using the formula;
New mass = Initial mass × (1/2)^n ; where n is the number of half lives.
n = 5.2 years/12.3 years
= 52/123
Therefore;
New mass = 1 × (1/2)^(52/123)
= 0.74599
= 0.75
The fraction of a tritium sample after 5.20 years will be approximately 3/4
