names and formulas worksheet
1. write the formulas for the following compounds.
(a) magnesium oxide
(b) sodium fluoride
(c) aluminum nitride
(d) potassium sulfide
(e) lithium iodide
(f) calcium bromide
(g) beryllium oxide
(h) nickel chloride
(i) magnesium nitride
(j) aluminum sulfide
(k) copper(i) bromide
(l) tin(ii) iodide
(m) iron(iii) chloride
(n) calcium phosphide
(o) lead(ii) oxide
(p) lead(iv) fluoride
(q) tin(iv) bromide
(r) copper(ii) sulfide
(s) iron(ii) oxide
(t) calcium nitride
2. write the names for the following compounds.
(a) li₂o
(b) alcl₃
(c) mgs
(d) cao
(e) kbr
(f) bef
(g) na₃n
(h) al₂o₃
(i) cucl₂
(j) febr₃
(k) pbs
(l) sno₂
(m) na₂s
(n) mg₃p₂
(o) nio
(p) cui
(q) pbcl₄
(r) fep
(s) caf₂
(t) k₃p

Question

Accepted Answer

# Explanation:
## Step1: Recall ion - charge rules
For ionic compounds, write the formula by balancing the charges of the cation and anion. For naming, name the cation first followed by the anion, with appropriate prefixes or Roman numerals for multivalent cations.
## Step2: Write formulas for part 1
### (h) nickel chloride
Nickel can have +2 charge (common) and chloride has a - 1 charge. To balance the charges, the formula is $NiCl_{2}$.
### (i) magnesium nitride
Magnesium has a +2 charge and nitride ($N^{3 -}$) has a - 3 charge. Using the cross - multiply method to balance charges, the formula is $Mg_{3}N_{2}$.
### (j) aluminum sulfide
Aluminum has a +3 charge and sulfide ($S^{2 -}$) has a - 2 charge. The formula is $Al_{2}S_{3}$.
### (k) copper(I) bromide
Copper has a +1 charge and bromide has a - 1 charge. The formula is $CuBr$.
### (l) tin(II) iodide
Tin has a +2 charge and iodide has a - 1 charge. The formula is $SnI_{2}$.
### (m) iron(III) chloride
Iron has a +3 charge and chloride has a - 1 charge. The formula is $FeCl_{3}$.
### (n) calcium phosphide
Calcium has a +2 charge and phosphide ($P^{3 -}$) has a - 3 charge. The formula is $Ca_{3}P_{2}$.
### (o) lead(II) oxide
Lead has a +2 charge and oxide has a - 2 charge. The formula is $PbO$.
### (p) lead(IV) fluoride
Lead has a +4 charge and fluoride has a - 1 charge. The formula is $PbF_{4}$.
### (q) tin(IV) bromide
Tin has a +4 charge and bromide has a - 1 charge. The formula is $SnBr_{4}$.
### (r) copper(II) sulfide
Copper has a +2 charge and sulfide has a - 2 charge. The formula is $CuS$.
### (s) iron(II) oxide
Iron has a +2 charge and oxide has a - 2 charge. The formula is $FeO$.
### (t) calcium nitride
Calcium has a +2 charge and nitride has a - 3 charge. The formula is $Ca_{3}N_{2}$.
## Step3: Name compounds for part 2
### (a) $Li_{2}O$
Lithium is the cation and oxide is the anion. The name is lithium oxide.
### (b) $AlCl_{3}$
Aluminum is the cation and chloride is the anion. The name is aluminum chloride.
### (c) $MgS$
Magnesium is the cation and sulfide is the anion. The name is magnesium sulfide.
### (d) $CaO$
Calcium is the cation and oxide is the anion. The name is calcium oxide.
### (e) $KBr$
Potassium is the cation and bromide is the anion. The name is potassium bromide.
### (f) $BeF$ (should be $BeF_{2}$)
Beryllium is the cation and fluoride is the anion. The name is beryllium fluoride.
### (g) $Na_{3}N$
Sodium is the cation and nitride is the anion. The name is sodium nitride.
### (h) $Al_{2}O_{3}$
Aluminum is the cation and oxide is the anion. The name is aluminum oxide.
### (i) $CuCl_{2}$
Copper has a +2 charge, so it is copper(II) and chloride is the anion. The name is copper(II) chloride.
### (j) $FeBr_{3}$
Iron has a +3 charge, so it is iron(III) and bromide is the anion. The name is iron(III) bromide.
### (k) $PbS$
Lead has a +2 charge (common for lead in this context), so it is lead(II) and sulfide is the anion. The name is lead(II) sulfide.
### (l) $SnO_{2}$
Tin has a +4 charge, so it is tin(IV) and oxide is the anion. The name is tin(IV) oxide.
### (m) $Na_{2}S$
Sodium is the cation and sulfide is the anion. The name is sodium sulfide.
### (n) $Mg_{3}P_{2}$
Magnesium is the cation and phosphide is the anion. The name is magnesium phosphide.
### (o) $NiO$
Nickel has a +2 charge, so it is nickel(II) and oxide is the anion. The name is nickel(II) oxide.
### (p) $CuI$
Copper has a +1 charge, so it is copper(I) and iodide is the anion. The name is copper(I) iodide.
### (q) $PbCl_{4}$
Lead has a +4 charge, so it is lead(IV) and chloride is the anion. The name is lead(IV) chloride.
### (r) $FeP$
Iron has a +3 charge, so it is iron(III) and phosphide is the anion. The name is iron(III) phosphide.
### (s) $CaF_{2}$
Calcium is the cation and fluoride is the anion. The name is calcium fluoride.
### (t) $K_{3}P$
Potassium is the cation and phosphide is the anion. The name is potassium phosphide.

# Answer:
1.
(h) $NiCl_{2}$
(i) $Mg_{3}N_{2}$
(j) $Al_{2}S_{3}$
(k) $CuBr$
(l) $SnI_{2}$
(m) $FeCl_{3}$
(n) $Ca_{3}P_{2}$
(o) $PbO$
(p) $PbF_{4}$
(q) $SnBr_{4}$
(r) $CuS$
(s) $FeO$
(t) $Ca_{3}N_{2}$
2.
(a) lithium oxide
(b) aluminum chloride
(c) magnesium sulfide
(d) calcium oxide
(e) potassium bromide
(f) beryllium fluoride
(g) sodium nitride
(h) aluminum oxide
(i) copper(II) chloride
(j) iron(III) bromide
(k) lead(II) sulfide
(l) tin(IV) oxide
(m) sodium sulfide
(n) magnesium phosphide
(o) nickel(II) oxide
(p) copper(I) iodide
(q) lead(IV) chloride
(r) iron(III) phosphide
(s) calcium fluoride
(t) potassium phosphide

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

Step1: Recall ion - charge rules

Step2: Write formulas for part 1

(h) nickel chloride

(i) magnesium nitride

(j) aluminum sulfide

(k) copper(I) bromide

(l) tin(II) iodide

(m) iron(III) chloride

(n) calcium phosphide

(o) lead(II) oxide

(p) lead(IV) fluoride

(q) tin(IV) bromide

(r) copper(II) sulfide

(s) iron(II) oxide

(t) calcium nitride

Step3: Name compounds for part 2

(a) $Li_{2}O$

(b) $AlCl_{3}$

(c) $MgS$

(d) $CaO$

(e) $KBr$

(f) $BeF$ (should be $BeF_{2}$)

(g) $Na_{3}N$

(h) $Al_{2}O_{3}$

(i) $CuCl_{2}$

(j) $FeBr_{3}$

(k) $PbS$

(l) $SnO_{2}$

(m) $Na_{2}S$

(n) $Mg_{3}P_{2}$

(o) $NiO$

(p) $CuI$

(q) $PbCl_{4}$

Answer: