counting atoms practice\nidentify the number of atoms for each element in the following compounds.\n1)…
counting atoms practice\nidentify the number of atoms for each element in the following compounds.\n1) mg(oh)₂ mg = o = h =\n2) caco₃ ca = c = o =\n3) ba₃(po₄)₂ ba = p = o =\n4) fe(cn)₃ fe = c = n =\n5) ccl₄ c = cl =\n6) na₂so₄ na = s = o =\n7) srf₂ sr = f = o =\n8) nh₄no₃ n = h = o =\n9) ch₃cooh c = h = o =\n10) cu(no₃)₂ cu = n =
Answer
Explanation:
Step1: Analyze $Mg(OH)_2$
$Mg$ has 1 atom, $O$ has $1\times2 = 2$ atoms, $H$ has $1\times2 = 2$ atoms.
Step2: Analyze $CaCO_3$
$Ca$ has 1 atom, $C$ has 1 atom, $O$ has 3 atoms.
Step3: Analyze $Ba_3(PO_4)_2$
$Ba$ has 3 atoms, $P$ has $1\times2=2$ atoms, $O$ has $4\times2 = 8$ atoms.
Step4: Analyze $Fe(CN)_3$
$Fe$ has 1 atom, $C$ has $1\times3 = 3$ atoms, $N$ has $1\times3 = 3$ atoms.
Step5: Analyze $CCl_4$
$C$ has 1 atom, $Cl$ has 4 atoms.
Step6: Analyze $Na_2SO_4$
$Na$ has 2 atoms, $S$ has 1 atom, $O$ has 4 atoms.
Step7: Analyze $SrF_2$
$Sr$ has 1 atom, $F$ has 2 atoms, $O$ has 0 atoms.
Step8: Analyze $NH_4NO_3$
$N$ has $1 + 1=2$ atoms, $H$ has $4$ atoms, $O$ has 3 atoms.
Step9: Analyze $CH_3COOH$
$C$ has $1+1 = 2$ atoms, $H$ has $3 + 1=4$ atoms, $O$ has 2 atoms.
Step10: Analyze $Cu(NO_3)_2$
$Cu$ has 1 atom, $N$ has $1\times2 = 2$ atoms, $O$ has $3\times2 = 6$ atoms.
Answer:
| Compound | $Mg$ | $O$ | $H$ | $Ca$ | $C$ | $Ba$ | $P$ | $Fe$ | $N$ | $Cl$ | $Na$ | $S$ | $Sr$ | $F$ | $Cu$ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| $Mg(OH)_2$ | 1 | 2 | 2 | ||||||||||||
| $CaCO_3$ | 3 | 1 | 1 | ||||||||||||
| $Ba_3(PO_4)_2$ | 8 | 3 | 2 | ||||||||||||
| $Fe(CN)_3$ | 3 | 1 | 3 | ||||||||||||
| $CCl_4$ | 1 | 4 | |||||||||||||
| $Na_2SO_4$ | 4 | 2 | 1 | ||||||||||||
| $SrF_2$ | 0 | 1 | 2 | ||||||||||||
| $NH_4NO_3$ | 3 | 4 | 2 | ||||||||||||
| $CH_3COOH$ | 2 | 4 | 2 | ||||||||||||
| $Cu(NO_3)_2$ | 6 | 2 | 1 |