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Answered 2009-12-24 19:23:18

In a balanced equation for the reaction, the coefficient appearing immediately before the formula for a reactant describes the number of moles of that reactant involved in the reaction shown by the equation.

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What general terms does a chemical equation indicate?

Chemical formulas of reactants and products; number of molecules involved in the reaction.


Is a neutron involved in a chemical reaction?

No. The valence electrons are involved in chemical reaction.


How do you know rusting is a chemical reaction?

Rusting is a reaction which combines molecules to form other molecules: metal + oxygen -> rust. The definition of a chemical reaction is molecules turning into other molecules, so rusting is a chemical reaction.


What is he small whole number that appears in front of a formula in a chemical equation?

This is a coefficient - the number of atoms and molecules involved in a chemical reaction.


What is the term for the numbers in front of some compounds to balance a chemical equation?

These numbers are the number of atoms and molecules involved in the chemical reaction.


What is the name of a number in front of a chemical formula in an equation called?

This is the number of molecules or atoms involved in the reaction.


Will a chemical reaction in different molecules trade positions with exchange reaction?

An exchange reaction is defined as a chemical reaction in which two different molecules or pairs of molecules exchange places. So yes, a chemical exchange reaction will result in different molecules trading positions.


How is heat involved in chemical changes?

Heat increases the speed at which the molecules move, thus increasing the speed of the reaction.


How are reactant elements or molecules different than the compound produced in a chemical reaction?

reactant elements and molecules are used in a chemical reaction, they are not mixed or combined or produced in a chemical reaction.


Is evaporation of water a chemical reaction?

No, the water molecules are just gaining enough energy to escape from the liquid and become vapour. No chemical change is involved, the molecules remain structurally the same throughout.


Chemical reaction involved in the preparation of thiazin from chalcone?

Synthesis is the chemical reaction that is involved in the preparation of the Thiazin from Chalcone.


How do the coefficients in a balanced equation compare quantites of two substances?

These coefficients show the number of molecules involved in the chemical reaction.


Are protons ever involved in a chemical reaction?

Protons are not involved in chemical reactions.


What are reactants in a chemical reaction?

The elements or molecules that participate in a chemical reaction and yield a product.


What describes the products of a chemical reaction?

The chemicals on the right side of a chemical equation


What is an atom or molecule called when involved in a chemical reaction?

Before the reaction, the atoms and molecules are called reagents. After the reaction, the resulting atoms and molecules are called products.As a reaction occurs, the reagents may form an activated complex and almost immediately decay into products.


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The valence electrons (electrons present in the outer most shell) are involved in a chemical reaction.


What causes molecules to change but are not themselves changed?

I think this refers to catalysts as these are considered not to be changed by a reaction-- sometimes this true when molecules react on the surface of a catalyst bu sometimes the catalyst does get involved in the chemical reaction- but is regenerated.


How is a product different to a reactant in chemical reaction?

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What chemical reaction describes where energy is absorbed?

You think probable to an endothermic chemical reaction.


What describes the way a substance react with other substance?

This is a chemical reaction described by a chemical reaction.


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In a chemical equation, coefficients represent the no. of molecules or atoms involved in a complete chem. reaction.


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How are equation coefficients useful in determining amounts of reactions and products?

Equation coefficients show the number of molecules involved in a chemical reaction.


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