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How does a hair permanent work?
A hair permanent works by breaking the disulfide bonds in the hair shaft with a chemical solution to allow the hair to be reshaped. Once the hair is reshaped, a neutralizer is applied to reform the disulfide bonds and lock in the new shape. This process creates a long-lasting change in the hair's structure.
What is the equation for the magnitude of acceleration in physics?
The equation for the magnitude of acceleration in physics is a v / t, where a represents acceleration, v is the change in velocity, and t is the change in time.
What is acceleration equation?
The acceleration equation is a = Δv / Δt, where "a" represents acceleration, "Δv" is the change in velocity, and "Δt" is the change in time. This equation is used to calculate how the velocity of an object changes over a specific period of time.
What is the equation for meausuring the change in thermal energy?
The equation for measuring the change in thermal energy is: Q = mcΔT, where Q is the change in thermal energy, m is the mass of the substance, c is the specific heat capacity of the substance, and ΔT is the change in temperature.
What is the equation for the change in thermal energy in a system?
The equation for the change in thermal energy in a system is Q mcT, where Q represents the change in thermal energy, m is the mass of the system, c is the specific heat capacity of the material, and T is the change in temperature.
Is dissolution of sulphar in carbon disulfide a chemical change?
No, dissolving solutes in a solvent is always a physical change!
Is dissolution of sulfur in carbon disulphide is chemical or physical change?
The dissolution of sulfur in carbon disulfide is a physical change because no new substances are formed. The sulfur particles are still sulfur particles, they are just dispersed within the carbon disulfide, similar to dissolving sugar in water.
What happens if the block is immersed in carbon disulfide?
When a block is immersed in carbon disulfide (CS2), it will experience a change in buoyancy depending on the block's density relative to that of carbon disulfide. If the block is less dense than CS2, it will float; if it is denser, it will sink. Additionally, carbon disulfide is a solvent for many organic materials, so if the block is made of a material that is soluble in CS2, it may start to dissolve or degrade. Overall, the interaction will depend on the material properties of the block and the physical characteristics of carbon disulfide.
How is carbon tetrachloride manufactured?
Carbon tetrachloride can be manufactured by treating carbon disulfide with chlorine gas in the presence of a catalyst, such as activated carbon or FeCl3. The reaction forms carbon tetrachloride and sulfur chloride as byproducts. Python's default encoding been UTF-8 since version 3.0, so there should be no need to change it unless you have specific requirements.
Equation for the heat of formation of carbon disulphide?
The heat of formation (∆Hf) of carbon disulfide (CS2) can be calculated using the standard enthalpies of formation of its constituent elements as follows: ∆Hf (CS2) = ∆Hf(C) + 2∆Hf(S) − ∆Hf(CS2). The standard enthalpies of formation for carbon (C) and sulfur (S) are known values and can be used in the calculation.
Why is burning carbon not a chemical change?
But it IS a chemical change. When carbon burns in oxygen it forms carbon dioxide with the release of energy and the formation of a new substance. This is a chemical change and can be represented by the equation: C (s)+ O2(g) = CO2(g)
What will happen when you add cs2 to fe plus s and fes?
When CS2 is added to reaction mixture Fe + S = FeS , it would dissolve the excess 'S' leaving the solids Fe and FeS without any change.
What is the methodology for Benzo a pyrene extraction in air pollutants?
It can be change according to your sampling system. If you have used the activated charcoal with active sampling, you can solid extraction with carbon disulfide. 0.5 or 1.0 ml carbon disulfide is added as extraction solvent to your sampling charcoal then wait aproximately half an hour. But you have to shake it sometimes during the extraction. At the end of the time, take the liquid phase above of the extract by pulling with a pipette to a vial. Now, benzo(a) pyrene is in your vial. Thats all.
Write a word equation to show what happens in a chemical change?
Oxygen + Glucose > Water + Carbon Dioxide or iron + oxygen ---> Ironoxide
What is the chemical equation describing the condensation process for carbon dioxide?
This is a physical change, not a chemical one, but you can write an equation. CO2(g) --> CO2(l) However, make sure you write the 2's as subscripts.
Synthesis reactions invole?
Synthesis reactions involve the combination of two or more reactants to form a single product. These reactions are often represented by the general chemical equation: A + B -> AB. They are commonly used in organic chemistry to build complex molecules from simpler starting materials.
How does breaking disulfide bonds affect the structure and function of proteins?
Breaking disulfide bonds in proteins can alter their structure and function. Disulfide bonds help proteins maintain their shape and stability. When these bonds are broken, the protein may unfold or change shape, leading to a loss of function. This can affect the protein's ability to interact with other molecules and carry out its biological roles.
