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A reactant is the starting material of a reaction.
For example, in the reaction 2H(+) + O(2-) --> H2O, both H(+) ions and the O(-) ion are the reactants, whereas H2O is the product of the reaction.
A reactant is something that REACTS.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoA chemical reaction occurs because the reactant(s), that is the elements or compounds that are reacting, undergo a change in the way the atoms are joined together.
A reactant is the product(s) that you started with before a chemical change took place.
(ie. they are reacting together, hence why they are called reactants.)
(Ex.) The chemical reactants are in bold, in the following skeleton equation:
Pb(NO3)2+ KI
-------------->KNO3 + PbI2
Anotherexample, as such:
HgO
-------------------
Ã
Hg + O2
**Notice in this chemical reaction, there is only one reactant.
Just remember:
Reactant(s) -----------> Products
Wiki User
∙ 14y agoIn any chemical reaction you start out with certain chemicals which are called the reactants, and they then react and turn into other chemicals which are called the products.
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After a chemical reaction starts when will a chemical reaction end?
When the limiting reactant is completely used up. A limiting reactant is the reactant that determines the amount of product. To determine this use the balanced chemical reaction with the masses of the reactants to determine the moles of product formed. The reactant that forms the least amount of product will be the limiting reactant.
A substance that undergoes change in a chemical reaction is called a what?
A substance that undergoes change in a chemical reaction is called a reactant.
Elements or compounds that enter into a chemical reaction?
reactant
If the order of a chemical reaction with respect to one of its reactants is zero how does that reactant's concentration affect the rate of the chemical reaction?
It doesn't - the reaction rate will not change regardless of how much of that reactant is added. That's the definition of zero-order.
Define limiting reactant?
In a chemical reaction the limitting reactant is also know as limiting reagent.it is the substance which is totally consumed when the chemical reaction is complete.the reacton can not proceed without it.
What is the difference between a reaction and products of a chemical reaction?
reactant + reactant = product
Why is a catalyst not a product or a reactant of a chemical reaction?
If a substance is a reactant or product of a chemical reaction then, by definition, it cannot be a catalyst.
Why is a catalyst not a product or reactant of a chemical reaction?
If a substance is a reactant or product of a chemical reaction then, by definition, it cannot be a catalyst.
What is a reactant in science?
A chemical that undergoes a chemical reaction is called a reactant. The chemicals that are produced by a chemical reaction are called the products. So in a chemical reaction, reactants turn into products.
What is the definetions of limiting reactant in chemistery?
In a chemical reaction the limiting reactant is the reactant that there is the least of in the reaction; it determines the amount of product formed. In a chemical reaction it is the reactant that gets completely "used up"
What is the reactant in the chemical reaction of respiration?
endothermic 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.
What is an element or compound that enters into a chemical reaction?
A reactant or reactants enters into a chemical reaction to form product(s)
What is the effect on the rate of a chemical reaction when the concnetration of a reactant is decreased?
When the concentration of the reactant is decreased, the rate of chemical reaction go slow.
What is a true of a catalyst?
The catalyst is not a reactant in a chemical reaction but contribute to the success of this reaction.
After a chemical reaction starts when will a chemical reaction end?
When the limiting reactant is completely used up. A limiting reactant is the reactant that determines the amount of product. To determine this use the balanced chemical reaction with the masses of the reactants to determine the moles of product formed. The reactant that forms the least amount of product will be the limiting reactant.
How limiting reactant control a reaction?
Using an excess of another reactant limits a reactant.
