Answer:
B) The molecules were closer together when the juice pop was frozen.
Atomic mass Ca = 40 a.m.u
1 mole Ca ----------- 40 g
2.5 mols Ca -------- ( mass Ca )
Mass Ca = 2.5 x 40 / 1
Mass Ca = 100 / 1
= 100 g of Ca
hope this helps!
The formula is SrCl2. hope this helps
Answer:
Answer is D
Explanation:
an increase in the number of protons
Answer:
light travels as a wave. but unlike sound waves or water waves, it doesn't need any matter or material to carry it's energy along