Explanation:
This is a neutral beryllium atom
Answer:
B
Explanation:
1 mole is equal to 58.31968 grams.
so 3.5 moles equal to answer choice B
A compound contains two or more elements chemically combined
Answer:
it should be the second one since London dispersion causes interaction between molecules.
hope I helped.
Answer:
Physical change: A,C ,D, F, H, I
Chemical Change: B, E, G, J, K