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Q: What terms is used to describe the substance present before a chemical reaction?
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What is a substance that enters into a chemical reaction called.?

The reactant is the substance present at the start of a chemical reaction, while the product is the substance(s) formed from a chemical reaction.


The substances present when a chemical reaction begins?

The substances that are present when a chemical reaction begins are reactants, at the end of the reaction they form products.


What is present after a chemical reaction?

That depends on the chemicals present before the chemical reaction and sometimes the conditions under which the chemical reaction occurred.


What is the decomposition reaction occurs in the presence of heat,?

Thermal decomposition is a chemical reaction where a single substance breaks into two or more simple substances when heated. The reaction is usually endothermic because heat is required to break the bonds present in the substance.


What refers to the new substances present after a chemical reaction?

result

Related questions

What is a chemical reactants and the products in the reaction?

Substances initially present in a chemical reaction that are consumed during the reaction or a substance that participates in a chemical reaction, esp a substance that is present at the start of the reaction while the end product of some chemical reactions yield products.


What is a substance that enters into a chemical reaction called.?

The reactant is the substance present at the start of a chemical reaction, while the product is the substance(s) formed from a chemical reaction.


Is it trueThe substance that are present when a chemical reaction begins are the products?

No: the substances present at the beginning of reaction are the reactants or reagents.


Is it true that if the substance that are present when a chemical reaction begins are the products?

true


What is the difference between a reactant and a product in a chemical reaction?

Substances initially present in a chemical reaction that are consumed during the reaction or a substance that participates in a chemical reaction, esp a substance that is present at the start of the reaction while the end product of some chemical reactions yield products.


Substances that enter a reaction are termed?

A substance which enters into a chemical reaction is called a reactant.In a chemical reaction-also called chemical change- one or more reactants (the initial substances that enter into the reaction) change into one or more products (the final substances that are present at the end of the reaction).


The substances present when a chemical reaction begins?

The substances that are present when a chemical reaction begins are reactants, at the end of the reaction they form products.


Is mixing water and baking soda a chemical or physical change?

chemical. when a reaction is undertaken that changes the structure of a substance and creates a new substance it is a chemical reaction. a gas is created during the reaction and a new chemical compound (sodium acetate) is left behind leaving neither of the previous elements present.


What is present after a chemical reaction?

That depends on the chemicals present before the chemical reaction and sometimes the conditions under which the chemical reaction occurred.


Difference with reactants and products?

The substances that are initially present and consumed in a chemical reaction are called reactants and the substance which is formed at the end of the reaction is called products..


What is the definition chemical change?

Chemical ChangesAs opposed to a physical change, chemical changes are present when the substance undergoes a chemical reaction and produces a new substance. A chemical change is a chemical reaction that will always take place for there to be a chemical change. Signs that a reaction is taking place: Formation of gases (bubbles), Color change, production of heat or light, and the formation of a solid. a change in composition and characteristics of matter.new substance maybe formed.original substance and form may be lost.new color and shapeExamplesFermentationPhotosynthesisRusting nailSpoiling milkDigesting food


What is the decomposition reaction occurs in the presence of heat,?

Thermal decomposition is a chemical reaction where a single substance breaks into two or more simple substances when heated. The reaction is usually endothermic because heat is required to break the bonds present in the substance.