Answer:
Molar mass of Ca = 40 g / mol , given 123 g Ca is 123/40= 3.075 moles,
1 mole = 6.022 * 10^23 atoms, so 3.075 moles Ca= 18.51*10^23 atoms
Explanation:
e kajajdjae no squo viboes we eso doadks Answer:ipao han meExplanation:no
1s2 2s2 2p2 i hope this helps
Charles' law (also known as the law of volumes) is an experimental gas law that describes how gases tend to expand when heated.
Answer:
the smallest particle of a chemical element that can exist.
Explanation:
