Their oxidation states have changed
After a redox reaction, atoms may have gained or lost electrons, changing their oxidation state. This can result in the formation of new compounds or products. Additionally, the atoms involved in the redox reaction may have rearranged to form different chemical bonds.
Their oxidation states have changed
During a chemical reaction, atoms are rearranged and bonded together in new ways, forming different substances. The total number of atoms remains the same before and after the reaction, as atoms are neither created nor destroyed in a chemical reaction.
The products are very different.
In a chemical reaction, atoms are rearranged, such that some atoms get out of some molecules and join other molecules.
The rearranging of atoms to form new combinations is called "chemical reaction", and the "new combinations" are called "compounds.
Their oxidation states have changed
Since there are more Cu atoms than O or H atoms in the reactants, it is likely that Cu will be the limiting reactant in the reaction. This means that there will likely be leftover O and H atoms after the reaction is complete. The products will likely contain Cu, O, and H atoms in different ratios based on the stoichiometry of the reaction.
When more than one atom is joined together by a chemical reaction, the result is called a chemical bond which holds together molecules and the strength of the bond depends on the atoms or the reaction. ---------------------------- A molecule.
Reactant atoms and molecules are the starting materials in a chemical reaction, while product atoms and molecules are the substances formed as a result of the reaction. During the reaction, reactant atoms and molecules are rearranged and transformed into new products with different chemical properties. The number and types of atoms remain the same, but their arrangement and interactions change.
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.
The reaction you are referring to is a single displacement reaction, also known as a single replacement reaction. In this type of reaction, an element replaces another element in a compound, resulting in a new compound and a different element being released.