select the correct answer
which statement correctly describes a physical change?
a
involves breaking and creating chemical bonds but not changing a phase
b. may involve a change in phase but does not involve a change in the molecular structure
c. may involve converting two or more substances into new substances
d.
involves changes at the molecular level
e.
involves energy transfer and change in color

B. may involve a change in phase but does not involve a change in the molecular structure.

Explanation:

This is because a physical change is when a substance in changed but remains the same substance. For example if you freeze liquid water into ice it is still H2O.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

answer: i dont know the answer but this might

explanation:

l