Explanation:
I Guess the first questions Answer is D and The second one is C..Not sure tho
All the letters that are the same. LL, hh, aa, TT, GG,OO,EE,vv,dd,yy,zz,AA
Answer:
1.2 stands for 2 atoms of hydrogen and 1 atom of oxygen
2.carbon and oxygen
3.
4.
5.
6.
