number of atoms in a formula determine the number of atoms in the following chemical formulas. 1. nacl 2…

number of atoms in a formula determine the number of atoms in the following chemical formulas. 1. nacl 2. h₂so₄ 3. kno₃ 4. cacl₂ 5. c₂h₆ 6. ba(oh)₂ 7. nh₄br 8. ca₃(po₄)₂ 9. al₂(so₄)₃ 10. mg(no₃)₂ 11. cu(no₃)₂ 12. kmno₄ 13. h₂o₂ 14. h₃po₄ 15. (nh₄)₃po₄ 16. fe₂o₃ 17. nac₂h₃o₂ 18. mg(c₂h₃o₂)₂ 19. hg₂cl₂ 20. k₂so₃

Answer

Explanation:

Step1: Count atoms in $H_2SO_4$

$2$ H + $1$ S + $4$ O = $7$

Step2: Count atoms in $KNO_3$

$1$ K + $1$ N + $3$ O = $5$

Step3: Count atoms in $C_2H_6$

$2$ C + $6$ H = $8$

Step4: Count atoms in $Ba(OH)_2$

$1$ Ba + $2$ O + $2$ H = $5$

Step5: Count atoms in $NH_4Br$

$1$ N + $4$ H + $1$ Br = $6$

Step6: Count atoms in $Ca_3(PO_4)_2$

$3$ Ca + $2$ P + $8$ O = $13$

Step7: Count atoms in $Al_2(SO_4)_3$

$2$ Al + $3$ S + $12$ O = $17$

Step8: Count atoms in $Mg(NO_3)_2$

$1$ Mg + $2$ N + $6$ O = $9$

Step9: Count atoms in $KMnO_4$

$1$ K + $1$ Mn + $4$ O = $6$

Step10: Count atoms in $H_2O_2$

$2$ H + $2$ O = $4$

Step11: Count atoms in $H_3PO_4$

$3$ H + $1$ P + $4$ O = $8$

Step12: Count atoms in $(NH_4)_3PO_4$

$3$ N + $12$ H + $1$ P + $4$ O = $20$

Step13: Count atoms in $Fe_2O_3$

$2$ Fe + $3$ O = $5$

Step14: Count atoms in $NaC_2H_3O_2$

$1$ Na + $2$ C + $3$ H + $2$ O = $8$

Step15: Count atoms in $Hg_2Cl_2$

$2$ Hg + $2$ Cl = $4$

Step16: Count atoms in $K_2SO_3$

$2$ K + $1$ S + $3$ O = $6$

Answer:

$7$
$5$
$8$
$5$
$6$
$13$
$17$
$9$
$6$
$4$
$8$
$20$
$5$
$8$
$4$
$6$