"New substances" is a vague description of what happens in a chemical reaction. Simply put though, yes.
An example of this would be if you took baking powder and vinegar and mixed them together, the resulting chemical reaction would create Carbon Dioxide. That is a new substance, it wasn't there until the reaction took place.
chemical changes
A chemical reaction is a process that rearranges the atoms of one or more substances to produce new substances
Chemical change.
The difference is reactants are material used before the chemical reaction. And products are the new substances created as a result of the chemical reaction. Correct me if im wrong... but im almost positive this is correct
A chemical reaction
No, A formation of a gas does not mean a chemical reation
These atoms form new substances where atoms are associated by chemical bonds.
Because after a chemical reaction new substances are obtained, with new properties.
Chemistry explain the chemical composition and structure of materials, the interaction of substances and produce new materials.
Chemical change.
Yes, after a chemical reaction new substances are formed.
Chemical Change