A, carbohydrates
Please give me brainlist
Contain more calories ..........
Answer:
If the number of atoms stays the same no matter how they are rearranged, then their total weight stays the same.
In all physical and chemical changes, the total number of atoms remains the same, hence when substances interact with one another, combine or break apart, the total weight of the system remains the same
An object that helps explain ideas about the natural world are called models.