If a piece of matter changes shape, how does its mass change? A. It increases.
B. It decreases.
C. It changes randomly.
D. It remains the same.
PLEASE HELP!!

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

Which of these is a physical property

The compound formed from 2 atoms of hydrogen and one atom of oxygen is