PLZZ HELP, I NEED THIS HELP FOR MY GRADES BIG TIME Its all the elements and stuff, I woke up from being in a coma for 3 weeks ago and i was in it for 1 month, and my teacher wont help. So please is you can help, help me

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.