TOPIC: CHEMICAL BONDING ( WRITING CHEMICAL FORMULA OF IONIC COMPUND)
1. Complete the following table.
Elements involved
Formation of an ionic compound
Chemical name
Chemical formula
Lithium and hydrogen
Magnesium and iodine
Sulphur and Barium
Sodium and nitrogen
2. Write the chemical formula for the following substances.
Substances
Formulas
Substances
a) Ammonium sulfide
f) Manganese (IV) oxide
b) Lithium fluoride
g) Silver chloride
c) Copper (II) bromide
h) Aluminium hydroxide
d) Zinc carbonate
i) Barium sulfate
e) Iron (III) nitrate
j) Caesium chloride
Formulas
3. Name the compounds with the following formula
a) MgCl2
______________________________
b) KNO3
______________________________
c) FeSo4
______________________________
d) Na3N
______________________________
e) PbSO4
______________________________
f) Cu(OH)2
______________________________
g) AgNO3
______________________________
h) AlF3
______________________________
i) NH4OH
______________________________
j) HgCl2
______________________________
T. Liah / Chem / 2020
Formulae and equations
Answer all the questions below.
1. A substance contains the ions X4+ and Y2-. What is the simplest formula of the compound containing
ions X4+ and Y2-?
a. XY2
b. X2Y4
c. X2Y
d. X4Y2
2. What is the formula of nickel(II) hydroxide?
a. NiOH
b. 2Ni(OH)
c. Ni(OH)2
d. Ni2OH
3. What is the formula of iron(III)nitrate?
a. Fe(NO3)3
b. Fe3(NO3)
c. Fe2(NO3)3
d. Fe3(NO3)2
4. Rubidium is in Group 1 of the Periodic Table. What is the formula of rubidium carbonate?
a. RbCO3
b. Rb2CO3
c. Rb(CO3)2
d. Rb2(CO3)2
5. A chemical equation is shown:
𝑥Na + 𝑦Cl2→ 𝑧NaCl
Which numbers will correctly balance this equation?
a.
b.
c.
d.
x
1
1
2
2
y
1
2
1
1
Z
2
2
1
2
T. Liah / Chem / 2020