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What are the substances that are present before a chemical reaction starts?
Wiki User
∙ 6y ago
The reactants exist before a reaction begins, and also the products are the result of the reaction of the reactants.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoI think it is a reactant
Wiki User
∙ 13y agoThese substances are called reactants.
Wiki User
∙ 9y agoThe chemicals are called reactants.
Wiki User
∙ 6y agoThey are the reactants.
Wiki User
∙ 13y agoBonds
Wiki User
∙ 13y agoReactant
Wiki User
∙ 14y agochemical
Wiki User
∙ 13y agoReactant.
Wiki User
∙ 13y agoreactants
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What do you call the substances before a chemical reaction takes place?
The substances before a chemical reaction takes place are called reactants.
Are chemical reactions a chemical change of original substances before a chemical reaction takes a place?
Substances are changed only after the beginning of a chemical reaction.
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.
The new substances produced in a chemical reaction have?
different chemical properties from whence they came. They have different chemical bonds than before (the definition of a chemical reaction).
Which scientist showed that the total mass of the substances in a chemical reaction is always the same before and after the chemical reaction?
Antoine Lavoisier
Are the substances present before the reaction?
Substances that are present before the reaction are called "reactants" or "reagents".
Substances that are present before the reaction?
Substances that are present before the reaction are called "reactants" or "reagents".
What do you call the substances before a chemical reaction takes place?
The substances before a chemical reaction takes place are called reactants.
What materials present after a reaction?
The substances that are before a reaction are the REACTANTS, and after the reaction, the substances left are the PRODUCTS.
In a chemical reaction the total mass of the substances before the reaction is?
The mass of all substances before a chemical reaction is equal to the mass of the substance after the reaction. This is under the law of conservation of mass.
Are chemical reactions a chemical change of original substances before a chemical reaction takes a place?
Substances are changed only after the beginning of a chemical reaction.
What is the starting substance in a chemical reaction is?
The substances you have at the beginning of a chemical reaction are called the reactants.
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 original substances before a chemical reation occurs are the?
Reactants --> Chemical reaction --> Products
What speeds up an rectant?
A catalyst does. These are usually non-organic substances that speeds up chemical reactions. The reactants are the ones that are present BEFORE the reaction.
The new substances produced in a chemical reaction have?
different chemical properties from whence they came. They have different chemical bonds than before (the definition of a chemical reaction).
Which scientist showed that the total mass of the substances in a chemical reaction is always the same before and after the chemical reaction?
Antoine Lavoisier
