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The number that tells how many molecules of a particular substance take part in a chemical reaction is?
Prisciladude
When writing a BALANCED Reaction equation , it is the extreme left number(Molar ratio) that indicates the number of molecules reacting.
e.g.
H2SO4 + 2KOH = K2SO4 + 2H2O
The molar ratios are 1:2::1:2
We can re-write this equation as
H2SO4 + KOH + KOH = K2SO4 + H2O + H2O
As you can see the 'KOH' and the H2O ' are written out twice.. So in order to eliminate this repetition we place a coefficient ( molar ratio) to the left of the given molecule.
lenpollock
Wiki User
∙ 14y agoIn 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.
Wiki User
∙ 13y agoWiki User
∙ 8y agoThe coefficient tells us how many molecules of a particle substance take part in a chemical reaction
Wiki User
∙ 6y agoThis number is a coefficient placed before the chemical formula.
Wiki User
∙ 11y agoa coefficient
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What is meant by a mole of a substance?
A mole of a substance is 6.022X1023 atoms, molecules, or formula units of a substance.
A substance formed in chemical reaction is a?
Anew substance that is formed is a product in a chemical reaction
What are products in a chemical reaction apex?
The new substance that are produced
What happens to the bonds of substance during a chemical reaction?
First chemicals bonds in the starting substances must break. Molecules are always moving. If the molecules bump into each other with enough energy,the chemical bonds in the molecules break. ;)
What is it called when atoms are rearranged to form a new substance?
A chemical change occurs when atoms are rearranged to form new molecules.
What is called changing a particular substance into another particular substance?
The conversion of one substance to another substance is a chemical change, which happens as a result of a chemical reaction.
What is substitute reaction?
A substitution reaction is when a functional group in a particular chemical compound that is replaced by another group. Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. A chemical compound is a pure chemical substance consisting of two or more different chemical elements, which can be separated into simpler substances by chemical reactions.
What is condensation reaction?
A chemical reaction in which water or another simple substance is released by the combination of two or more molecules.
What is meant by a mole of a substance?
A mole of a substance is 6.022X1023 atoms, molecules, or formula units of a substance.
Substance changes to form a new substance with?
a chemical reaction causes breakage and bonding of the atoms and molecules in any substance that consists of matter.
Is it a chemical reaction when a substance changes its form?
The change of form in not a chemical process; it is only a physical change, the molecules remain unchanged.
What information does the coefficient provide in a chemical reaction?
It tells you the number of molecules or number of moles of each substance.
A substance formed in chemical reaction is a?
Anew substance that is formed is a product in a chemical reaction
What is the term for a substance that is formed by a chemical reaction?
A product is a substance that is formed by a chemical reaction.
What is a substance that a chemical reaction produces?
This substance is called the end-product of a chemical reaction.
Can the substance that take part in a chemical reaction keep their properties?
No. The essence of a chemical reaction is the alteration of the chemical structure of the substance. The reaction that allows for the substance to keep their properties is the physical reaction.
A substance formed in a chemical reaction?
Anew substance that is formed is a product in a chemical reaction
