Answer:
the number of molecules in 7g nitrogen
Ans) 7 gram of Nitrogen contains 1.5×10^23 molecules =1.5e+23
Answer:
7
Explanation:
N-14 has 7
i looked it up ye ur probably gonna get it right
A physical change does not change the identity of the substance but the chemical change does.
Example
If you tear or shred a piece of paper it is still paper, but if you pour chemicals on it it will probably change to something else.
I believe that the answer is A i could be wrong though.
Answer:
Atoms gain or lose electrons
Explanation:
