Ch7 Phys. Sci. Counting Atoms in Compounds Worksheet: 1. Determine the amount of every atom on each of the following compounds: Compound Number of Atoms per Element NaCI Na= CaClz Cam CI= 3 H2SO4 H= S= O= Mg(CzH:O2)2 Mg= C= H= 0= 5 C2H6 H= Ba(OH)2 Ba= O- H= NH Br N= H= Br= H202 H- 0= FezO3 Fe= O- 10 K2SO4 S= 0= 11 Cu(NO3)2 Cu= N= 0= 12 (NH4) 3PO4 N= P= O= 13 KCIO3 K= CI= 0= 14 NaC2H302 Na= C= H= 0= 15 CH1206 C= H= O=