An ice cube is gently warmed as shown. Which process is taking place?
IGCSE Coordinated Chemistry Workout 2

Quiz
•
Chemistry
•
10th Grade
•
Medium
Dave Gould
Used 304+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Decomposition
Dissolving
Boiling
Melting
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A solid has a giant structure. It does not conduct electricity but does so when it is dissolved in water. What could the solid be?
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The diagram shows a metal being extracted from its powdered ore. What happens to the ore in this reaction?
It burns
It is oxidised
It is reduced
It decomposes
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Limestone and common salt are important minerals. For which process are both minerals suitable starting materials?
Manufacture of alkalis
Manufacture of chlorine
Manufacture of fertilisers
Manufacture of hydrogen
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A man spills ink on his polyester shirt. The table shows the solubility of ink and of polyester in four solvents. Which solvent should be used to remove the ink?
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The table shows the pH values of four solutions. Which solution produces an exothermic reaction when mixed with a dilute acid?
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nitrogen from the air is used to manufacture the fertiliser ammonium sulphate. Why is a catalyst needed during this process?
Nitrogen from the air is not pure.
Nitrogen is a gas at room temperature.
Nitrogen is a non-metallic element.
Nitrogen reacts slowly.
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