Determine the percent composition of the following: 1) NaBr

2) CaC2O4

3) Al2(SO4)3

4) LiNO3

5) CH3COOH

6) Ba(NO3)2

BTW all the numbers are SUBSCRIPTS
PLEASE HELP SOMEONE

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

How does the nervous system affect the excretory system?

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13