Answer:
Table salt has a uniform and definite composition. It is not a mixture because the sodium and the chlorine are chemically bonded, meaning you cannot take the sodium out of the chlorine or vice versa.
Explanation:
All samples of salt are chemically identical, whereas a mixture can vary. For example, salt water is a mixture because you can have differing amounts of salt or water. The composition is not the same all the way throughout.
Answer:
Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.
Explanation:
A solution is when a solute dissolves in a solvent. ( I don’t understand the rest of the question)