Answer:
pi
Explanation:
In chemistry, a covalent bond is formed by the overlap of atomic orbitals. The bond formed may be a sigma bond or a pi bond depending on the way the atomic orbitals are overlapped.
If the overlap occurs in a side-to-side manner, the bond formed is said to be a pi bond. Pi bonds are common in organic species having multiple bonds such as ethene and benzene.
Answer:
The HWA attacks eastern hemlock trees in forests and ornamental hemlock trees found in our residential landscaping. It feeds on the hemlock trees' young twigs by sucking the sap, causing their buds to die and needles to dry out and drop from the plant prematurely i think
hope i helped!!
, the speed at which a chemical reaction<span> proceeds. It is often expressed in terms of either the concentration (amount per unit volume) </span>
Answer:
The effects of supercritical CO2 (SC-CO2) on the microbiological, sensory (taste, odour, and colour), nutritional (vitamin C content), and physical (cloud, total acidity, pH, and °Brix) qualities of orange juice were studied. The CO2 treatment was performed in a 1 litre capacity double-walled reactor equipped with a magnetic stirring system. Freshly extracted orange juice was treated with supercritical CO2, pasteurised at 90°C, or left untreated. There were no significant differences in the sensory attributes and physical qualities between the CO2 treated juice and freshly extracted juice. The CO2 treated juice retained 88% of its vitamin C, while the pasteurised juice was notably different from the fresh juice and preserved only 57% of its vitamin C content. After 8 weeks of storage at 4°C, there was no microbial growth in the CO2 treated juice.