1 Yellow media without gas pocket-sugar utilization with production of acid only. 2  Red media (no change in media) -no change and no sugar utilization. 3  Pink media especially at the top, ignore gas-no sugar utilization with degradation of protein resulting in alkaline end products (this may be difficult to see).
With organic solvents with long alkane chain, such as n-hexadecane and n-decane, the water droplets become much larger and the microemulsion is unstable. In this case, solvent polarity may have become a determining factor and the long alkane chain was too hydrophobic to form a stable microemulsion with water.
Rating Newest Oldest. Best Answer: It is due to Thermodynamics. Radioactive decay occurs to decrease enthalpy and increase entropy. Everything in the universe has tendency to become something that is more stable, and less reactive.Radioactive isotopes have unbalanced ratio of protons and neutrons.This makes the isotope metastable (unstable).ating Newest Oldest. Best Answer: It is due to Thermodynamics. Radioactive decay occurs to decrease enthalpy and increase entropy. Everything in the universe has tendency to become something that is more stable, and less reactive.