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What is the name given to chemicals before they undergo chemical reactions?
Wiki User
∙ 11y ago
They are reactants.
Wiki User
∙ 11y ago
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How are these last two chemical reactions alike different?
The question is quite vague, as there are many chemical reactions and none are specified, so the two chemical reactions must be specified before an answer can be given.
Does gasoline undergo a physical change before it burns?
The burning of the gasoline is a chemical change.
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.
What chemical change did the statue of liberty likely undergo describe the propeties before and after the chemical change?
Blah Blah...Sorry dont know the answer:(
Does chemical reactions make new materials called the reactants?
Hi there! Well, to answer your question, chemical reactions invlove two sets of substances: the reactants and the products. The reactants are the chemicals that are involved BEFORE the reactions occurs. The products are the chemicals that are formed as a result of the chemical reaction. In another words, the products are your end results. Therefore, chemicals reactions make new materials called the PRODUCTS, rather than reactants. For example in photosynthesis: Glucose + Oxygen -----> Carbon dioxide + Water Glucose and oxygen are your reactants, whereas carbon dioxide and water are your products.
Is food spoiling a chemical change?
Yes, it is a chemical change. It only takes one experience with a rotten egg to learn that they smell different that fresh eggs. When eggs and food spoil, they undergo a chemical change. The change in odor is a clue to the chemical change Chemical Reactions Chemical Changes are also called Chemical Reactions. Chemical reactions involve combining different substances. The chemical reaction produces a new substance with new and different physical and chemical properties. Matter is never destroyed or created in chemical reactions. The particles of one substance are rearranged to form a new substance. The same number of particles that exist before the reaction exist after the reaction.
Does wood undergo a physical change before it burns?
No. It is a chemical change.
How are these last two chemical reactions alike different?
The question is quite vague, as there are many chemical reactions and none are specified, so the two chemical reactions must be specified before an answer can be given.
Does gasoline undergo a physical change before it burns?
The burning of the gasoline is a chemical change.
What do you know about types of atoms before and after a reaction?
Assuming that you are referring to chemical reactions, we know that atoms are not changed by chemical reactions (except for their oxidation states). That means that all the same types of atoms are present after the reactions as were there before the reactions. The type of an atom is determined by the number of protons in its nucleus.
They are broken before a chemical reaction takes place?
Chemical Bonds
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 another solvent used instead of ethanol and why?
Water is a tremendous solvent. It is referred to as a universal solvent. Most chemical reactions involve a solution in water. This is because many chemical separate into positive and negative ions in water. When this occurs with more than chemical, it results in a chemical reaction where the ions recombine into other chemicals that weren't there before.
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 chemical change did the statue of liberty likely undergo describe the propeties before and after the chemical change?
Blah Blah...Sorry dont know the answer:(
In a chemical reaction what does it take energy to do?
For most chemical reactions, energy is required to supply an "activation energy" required before reaction.
