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Formula bonding and nomenclature questions

Formula bonding and nomenclature questions | form two Chemistry

Find Formula bonding and nomenclature examination questions, form two Chemistry in acaproso.com

# Question
1

The simplest formulas of a compound formed when combining 13g of aluminium and 17g of chlorine is:
A. AlCl
B. Al 2 Cl
C. Al 3 Cl 2
D. AlCl 3


Multiple choices
2

What do you understand by the following terms?
(i) Empirical formula
(ii) Relative atomic mass


Short answers
3

A certain compound K contains 15.8% carbon and 84.2% sulphur. The molar mass of K is 76 g/mol. Determine its:
(i) simplest formula
(ii) molecular formula


Mathematical Calculation
4

Write the chemical formula for each of the following compounds:
(i) Sodium carbonate
(ii) Calcium nitrate
(iii) Ammonium chloride


Short answers
5

Calculate the percentage by composition of the underlined elements in the following compounds:

(i) Na 2 SO 4

(ii) Ca(HCO 3 ) 2


Mathematical Calculation
6

State the valency of the following atoms:
(i) Aluminium (ii) Neon
(iii) Sulphur (iv) Potassium


Short answers
7

Give the chemical formula for the combination of the following sets of ions:
(i) Mg 2+ , PO 43-
ii) Fe 3+ ,SO 42-


Short answers
8

Find the oxidation number of each of the underlined elements in the following:

  1. KClO3
  2. Cr2O72-
     

Short answers
9

Use the IUPAC system to name each of the following chemical compounds:
(i) CuO
(ii) CaSO4
(iii) HNO3
(iv) ZnCl2


Short answers
10

Substance X liberates chlorine gas from acidified potassium chloride. The behaviour of X is described as

  1. an oxidising agent
  2. an oxidising and reducing agent
  3. catalyst
  4. a reducing agent
  5. bleaching agent.

Multiple choices