Answer:
The Equations sort each listed half reaction as either an oxidation or a reduction.
Fe + CuSO4 + → FeSO4 + Cu
(Fe oxidized, Cu reduced)
Explanation:
For proper understanding of the concept of the Redox reaction, let us know the meaning:
Reduction- Oxidation or "redox" reactions occur when elements in a chemical reaction gain or lose electrons. This reaction causes an increase or decrease in oxidation numbers. The Half Equation Method is used to balance these reactions. The equation is separated into two half-equations, one for oxidation and one for reduction. For Example -
CuO + H2 → Cu +H2O.
In this redox reaction, CuO is getting reduced to Cu since Oxygen is getting removed.
Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s) Oxidation state of Fe changes from 0 to +2 and oxidation state of Cu changes from +2 to 0.
Answer:
It allows rapid conduction of water from one vessel element to the next.
Explanation:
Vessels are one of the two types of conducting cells of xylem. Vessels are made of vessel elements. Vessel elements are the individual cells with perforation plates. The perforation plates have large holes (perforations). Perforation plates of adjacent vessel elements allow easier conduction of water from one vessel element to the next.
The perforated end walls of vessel elements allow these conducting cells to conduct water more readily than tracheids. Stacking of vessel elements with perforated end walls make the vessel like a water pipe through which water is being readily conducted.
Correct answer - potometer.
Why? - The potometer does not measure the rate of transpiration accurately because not all of the water that is taken by the plant is used for transpiration (water taken might be used for photosynthesis or by the cells to maintain turgidity). The potometer measures the rate of uptake of water.
Novocaine is a logal anesthetic agent which is commonly used during dental procedures or other oral processes. This causes numbness of the infected area so that the patients will not feel the pain. This is a local name for procaine which was discovered by the German chemist named Alfred Einhorn in 1905.
The duration to which we expect the numbness varies to the different factors. The factors include the location of the application, the area, concentration, and presence of other anesthetic chemical. It is expected at least that novocaine will last for 1.5 to 3 hours.
