Which of these can be mined from earth and used as an energy source? A. Get rid of the waste and extra fluid

B. Ureters

C. Coal

D. Bladder​

What is the mass of 0.46 mil of mgcl2

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!

If you are told to get 100 ml of stock solution to use to prepare smaller size sample for an experiment, which piece of glassware would you use?