Easy chemistry ?
give the number of each kind of atom in the following formula units or molecules
a. 5nacl i put na=5 cl=5 ? ?
b. ca(oh)2 i put ca=1 oh=2 ? ?
c. hc2h3o2 i put c=2 h=4 o=4
d.4li2o i put li=8 o=4

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!

The polarity of an oxygen-hydrogen bond is higher than the polarity of a nitrogen-hydrogen bond, allowing amines to be more soluble than alcohols.

If you had to research a particular disease or area of concern in veterinary medicine and science, which one would you choose? why?