Change in the nucleus of an elemental atom will change or break the atom. Change in the number of electrons in an atom will change its charge. Change in the number of the electrons in a molecule will change its charge and possibly will change its shape, or may break it. New chemicals can be made through combinations of other chemicals. Shooting photons at an atom or a molecule can change something about the atom or molecule, if the photon has the right energy and 'hits' it properly. It is also possible, under appropriate conditions, that a photon of high enough energy shot by an atom will convert into an electron (matter) and a positron (antimatter).
Well, when something changes dramatically enough to create new substance you have a pure chemical change. You can tell its a chemical change because the chemical structure and makeup with be completely changed, and you'll have the characteristics of another element. I'm 13 and hope I helped.
This is a chemical change, a chemical reaction.
physical change
a chemical change.
a chemical change
a chemical change
A chemical reaction.
chemical change
A chemical change.
A chemical change involves altering substances. One or more substances are changed into different and new substances in this process.
A chemical change.Why?This is because in a chemical change the chemical formula is edited. While it is edited, compounds may be formed.This answer was written in 2009 and may be subject to change due to future discoveries. It is not the fault of whoever answered this that this may be wrong in future discoveries.
"A physical change is any change not involving a change in the substance's chemical identity. Matter undergoes chemical change when the composition of the substances changes: one or more substances combine or break up (as in a relationship) to form new substances" From This I gather that its a physical change as the cheese isn't changed into another substance, The cheese doesnt change, for example it doesnt taste or smell different, But its physical propertys do change it looks different
No. That is a chemical change. In a physical change, their is no change in chemical composition forming one or more new substances.
a chemical change
Yes, a chemical change makes anything into one or more substances. In a chemical change the the matter can change.
A change in matter that produces one or more new substance is a chemical reaction. This is also known as a chemical change.
A chemical change produces a new substance with different properties than the original substance.
When one or more new substances is created, the change is called a chemical change. A chemical change has occurred if there is a new substance created, there was energy released or absorbed, or the substances no longer exhibit the same chemical properties.
A chemical change is a change in which a change of matter that produces one or more new substances is a chemical change.Unlike a physical change, a chemical change produces new substances with new and different properties. Examples of chemical changes are combustion,electrolysis, oxidation,and tarnishing, frying an egg, burning of wood, cutting a tree.
A chemical change.
The rotting of wood is a chemical change because of many reasons. One of the reasons is because when wood rots, it produces mold, which is a new substance. The definition of chemical change is a change that produces one or more new substances. When the wood rots, you are unable to take the rotted wood and mold and make it back into wood that is yet to be rotted. So because the wood produces one (or more) new substances, the rotting of wood is a chemical change.
A change in which one or more new substances are formed is a chemical change.
Chemical change
A chemical change involves altering substances. One or more substances are changed into different and new substances in this process.
that's an alloy