As far as I can gather from mark schemes of A level papers... Hydrogenation is simply ADDING HYDROGEN, whereas reduction is removing O2 for example and replacing it with H2
Example: In this test paper, the marks are given for Hydrogenation ONLY, not reduction:
H2C=CH2 + H2 --> CH3CH3
In this test paper, the marks are given for reduction ONLY, and not hydrogenation:
C6H5NO2 + 3H2 --> C6H5NH2 + 2H2O
(NitroBenzene) (AminoBenzene/phenylamine)
This is just interpretation of the mark scheme, not concrete proof.
In the titration of oxalic acid with NaOH, the acid-base reaction involves the neutralization of the acid by the base. However, in the titration of oxalic acid with potassium permanganate, the permanganate ion oxidizes the oxalic acid to carbon dioxide. This difference in reaction mechanisms leads to different equivalence points and color changes in the two titrations.
To determine the rate constant k for a pseudo-first order reaction, you can plot the natural logarithm of the concentration of reactant vs. time. The slope of the resulting line will be equal to -k. This approach is often used for reactions where one reactant is present in excess and its concentration remains constant throughout the reaction.
Could be one of this: Boca vs River Celtic vs Rangers Barcelona vs Madrid Peñarol vs Nacional Brasil vs Argentina Fenerbahce vs Galatasaray Perspolis vs Esteghlal
Earth vs. The Pipettes was created on 2010-09-06.
Mars vs Venus was created on 2007-05-01.
Point reduction helps, because it helps with portion control.
Reaction and Review - 2011 Dahmer vs- Gacy 1-35 was released on: USA: 15 August 2011
Analyzing the energy vs reaction progress graph can provide insights into the energy changes that occur during a chemical reaction. The graph can show the activation energy required for the reaction to occur, the stability of the reactants and products, and the overall energy change of the reaction. By studying these aspects, scientists can better understand the mechanism and efficiency of the reaction.
The benefits of using cloth diapers vs disposable ones are the money one saves by reusing the same diapers, the reduction of waste in landfills is also important.
In the context of "spontaneous vs non-spontaneous," a reaction is considered spontaneous if it occurs on its own without needing external influence. On the other hand, a non-spontaneous reaction requires external energy input to occur.
Unchained Reaction - 2012 Heavy vs- Light 1-1 was released on: USA: 18 March 2012 Hungary: 8 May 2012
Reaction and Review - 2011 Vampire Girl vs- Frankenstein Girl 2-2 was released on: USA: 13 October 2011
Analyzing the reaction rate vs temperature graph can provide insights into how temperature affects the speed of a chemical reaction. The graph can show the relationship between temperature and reaction rate, such as how increasing temperature can generally increase the rate of reaction due to more collisions between reactant molecules. Additionally, the graph can help identify the temperature at which the reaction rate is maximized, known as the optimum temperature.
As altitude increases, air density decreases. This reduction in air density leads to lower aerodynamic drag on an aircraft, allowing it to achieve a higher stall speed (Vs) at higher altitudes. Therefore, Vs increases with altitude due to the decrease in air density.
In a chemical reaction, the thermodynamic product is the most stable product, while the kinetic product is the product that forms the fastest. The difference lies in the energy levels and reaction rates of the products.
The rate constant is not indicative of the order of the reaction. To determine the order of the reaction, experimental data (such as concentration vs. rate data) is needed. The order of the reaction can be found by examining how changes in reactant concentrations affect the rate of the reaction.