Solution. because the substances can't go back to their original form. like kool aid, when its mixed you cant separate the powder and the water again.
A
The number of electrons/protons is the one that determines the atomic number of an element.
Answer:
Reptiles, marsupials, dogs, and cats
Explanation:
Earth spins at 23.5
A day is one rotation
On the cumulative Report, it would be much easier to read for the patients if the ranges in parentheses were tabbed over from the actual result instead of printing directly one space after the result.