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Above the valence arrow.

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14y ago

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A chemical formula written over the arrow in a chemical equation signifies?

A chemical formula written over the arrow in a chemical equation is that of the catalyst used in the reaction.


What is equation including catalyst for the hydration of 1-methylcyclobutene?

The equation, including the catalyst for the hydration of 1-methylcyclobutene is: C5H8 + H2O + HX ---> C5H8OH + H2O.


What is the catalytic efficiency equation used to measure the effectiveness of a catalyst in a chemical reaction?

The catalytic efficiency equation, also known as the turnover number, is calculated by dividing the rate of the reaction without a catalyst by the rate of the reaction with a catalyst. This ratio helps measure how effectively a catalyst speeds up a chemical reaction.


How is a catalyst represented in a chemical reaction?

A catalyst is represented in a chemical reaction by placing it above the arrow in the reaction equation. This shows that the catalyst is not consumed in the reaction and only speeds up the reaction rate without being permanently changed.


What is the chemical equation sulfur trioxide when platinum is used as catalyst?

So²+o²=so³


How do you indicate that a catalyst was used in a reaction?

You write the name over the arrow in the chemical equation.


Why is a catalyst written above the arrow in a chemical equation rather than with the reactants?

A catalyst is written above the arrow in a chemical equation to show that it is not consumed in the reaction and thus does not appear in the overall stoichiometry of the reaction. This means that it does not take part in the reaction as a reactant or a product, but it still helps in speeding up the reaction. Placing it above the arrow helps to distinguish it from other reactants or products.


What is the symbol of catalyst?

you cannot. A catalyst is not a single substance, any chemical reaction can have many different catalysts. Usually these are (different) enzymes, but for instance metal ions or metalic particles can act as catalysts too. Otherwise, you can find catalysts at the chemists.


Write a word equation to describe the decomposition of copper on heating?

CuCO3 ==> CO2 + CuO (heat is the catalyst, written above the arrow)


What does MnO2 mean in a chemical equation?

It means you have some manganese(IV) oxide. This compound most often shows up in chemical equations as a catalyst. It is most popularly used as a catalyst in the decomposition of hydrogen peroxide (H2O2.) A catalyst speeds up a chemical reaction by lowering the reaction's activation energy. In the equation for a chemical reaction, the catalyst is written in superscript-small symbols above the "yield" arrow.


What has the author Rosemary Green written?

Rosemary Green has written: 'God's catalyst'


What does manganese above an arrow in a formula equation mean?

Manganese (Mn) above an arrow in a chemical equation typically means that the element is a catalyst for the reaction. This indicates that manganese is involved in the reaction mechanism, but is not consumed in the overall reaction and is regenerated at the end.