It depends on the Chemical the Substance has. The more Chemicals, the better the Substance gets when its mixed with another.
D because Carbon and Oxygen form covalent compounds. I wasn't the greatest at chem., but I'm pretty sure this is correct :D let me know if I gave you the right answer.
250 --> 125 --> 62.5 --> 31.25
each arrow equals one half life, so 3 half lives
14 days/ 3 half lives =
4.67 days = half life
Answer:
I don't know the help you are talking about.
You did not link an image of it so I can’t see the rings.
