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When chemical change takes place the total number of atoms changes?
No, the total number of atoms remains constant in a chemical reaction. According to the law of conservation of mass, atoms are neither created nor destroyed during a chemical change. They are simply rearranged to form new substances.
When does a chemical change take place?
Whenever there is an electronic transfer between atoms.
Why do experiements change color?
because of the chemical changes taking place between the atoms involved...
True or false atoms do not have a change?
Atoms can only change in the number of electrons in their 'shells'. That's actually the way they can react with each other. When reacting, their properties will change a lot.However, if the number of protons or neutrons changes that atom is not of the same element; this will only take place in NUCLEAR reactions, not in 'normal' chemical ones.
What type of change occurs when electrons form a bond between two atoms?
A chemical change occurs when electrons form a bond between two atoms. This is because the electrons are being shared or transferred between the atoms, leading to the formation of a new compound with different chemical properties.
What chemical change takes place when an iron nail rusts?
Bonds are formed between some of the iron atoms in the nail and oxygen atoms from the air.
Ions that do not change in a chemical reaction is?
Spectator ions do not change in a chemical reaction as they appear in the reactants and products in the same ionic form. They do not participate in the reaction and are typically omitted when writing net ionic equations.
Why is iron rust a chemicals change?
The reason that rust is considered a chemical change is because the "connections" or the bonds of atoms are changed in the process. When atoms "rearrange themselves" by changing the "connections" or bonds to allow different compounds to be formed, as is the case with the formation of rust, a chemical change has taken place.
Is expansion of metals with change in temperature a chemical change?
The expansion of a metal due to an increase in temperature is a physical change.This phenomenon is not a chemical change because the smallest unit of the material that possesses all of the chemical properties of the material is one atom, and no chemical changes to any of the atoms has occurred; none has been oxidized or reduced, nor has any other change in the chemical bonding of the metal atoms taken place.
What is the degree of reduction for the chemical reaction taking place in this experiment?
The degree of reduction for a chemical reaction is the number of electrons gained by the atoms of a substance. It indicates how much the atoms have been reduced in terms of their oxidation state.
What happens when chemical?
When atoms of two different elements join together (or combine) to make molecules of a compound, scientists say that a Chemical Change or Chemical Reaction has taken place. I you look at the substances you start off with and the substance you get after the change, they are often different.
Why is the change from iron to rust considered a chemical change?
The reason that rust is considered a chemical change is because the "connections" or the bonds of atoms are changed in the process. When atoms "rearrange themselves" by changing the "connections" or bonds to allow different compounds to be formed, as is the case with the formation of rust, a chemical change has taken place. In iron, the iron atoms are arranged in a metallic crystalline matrix. When rust occurs, oxygen bonds to the iron atoms (which where not chemically bonded to anything before) to create an oxide of iron.
