a mixture remains physically and chemically unchanged-like sand and sugar
however,two elements that have the ability to react when 'mixed' physically and chemically change such that one or more compounds are formed . this is not a mixture .
conclusion: parts of a mixture do not change.
A mixture is a solution of a compound or the liquid state of a compound. When you make a solution of a salt, the salt will solute in the solvent, and go to the ionic state. Example, NaCl in water:
NaCl(s) -> Na+(aq) + Cl-(aq)
The kind of change that occurs when a mixture forms is considered a physical change. For example, ice melting into water is seen as a physical change.
The chemical composition of components remain unchanged.
The properties of the mixture are changed.
chemical change
physical changes
Decomposition of a compound is a chemical process.
an awfl won
Fertilizer that you buy at a gardening store is usually heterogeneous.
A chemical change occurs because compound is two elements put together so when they are separated it forms a new substance.
Physical change
A phase change.
chemical change
physical change
chemical change
chemical change
Both !
allele
chemical change
An awful change.
Chemical change.