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CHE1501 ASSIGNMENT 1 SOLUTIONS SEMESTER 1 2022
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CHE1501 ASSIGNMENT 1 SOLUTIONS SEMESTER 1 2022
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2022CHE1501-GENERAL CHEMISTRY 1A
SEMESTER 1
ASSIGNMENT 01 SOLUTIONS
Structural Engineer
M.Sc. B.Sc. Hons. Civil Engineering
Moscow, Russia
WhatsApp 081 837 6138
, Question 1
Which one of the statements below about mixtures is correct?
[1] The different substances in a mixture are always in a definite proportion to each other.
[2] A mixture is made up of elements that are chemically combined.
[3] A mixture must contain at least two different substances.
[4] It is extremely difficult to separate a mixture into different substances.
[5] A mixture is always homogeneous.
In chemistry, when two or more substances mix with each other without participating in a
chemical change, the resulting substance is called a Mixture.
Question 2
Consider the following below: which one is a heterogeneous mixture?
[1] Cola
[2] Brass
[3] Soil
[4] Air
[5] Coffee with sugar stirred in
A heterogeneous mixture is a mixture in which the composition is not uniform throughout
the mixture.
Question 3
Aluminium sulphate can be broken down into simpler substances by chemical means. It is
therefore.
[1] a mixture
[2] a compound
[3] an element
[4] an atom
[5] an electron
A chemical compound is a chemical substance consisting of two or more different
chemically bonded chemical elements, with a fixed ratio determining the composition.
Compounds can be broken down by chemical means into simpler substances.
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