The apparatus used to remove sand from a mixture of salt and sand is shown. The contents of beaker 1 are stirred and then poured into the funnel above beaker 2. What is in beaker 2?
IGCSE Combined science (Chemistry)

Quiz
•
Chemistry
•
9th - 10th Grade
•
Hard
Anete Biteniece
Used 136+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a mixture of an element and a compound
a mixture of two compounds
one compound only
one element only
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which row describes an element and a compound?
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The positions of elements P, Q, R, S and T in the Periodic Table are shown. The letters are not the symbols for the elements.
Which element forms an ionic compound with element P?
Q
R
S
T
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The diagram shows the apparatus used for the electrolysis of lead(II) bromide using inert electrodes X and Y. Lead is formed at electrode Y.
Which statement about the electrolysis is correct?
A green gas is given off at electrode X.
Electrode Y is the anode.
Only a physical change takes place when a current is passed.
The electrolyte is in the molten state.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which temperature changes occur during exothermic and endothermic reactions?
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a catalyst?
a substance that decreases the rate of reaction and is chemically changed at the end of the reaction
a substance that decreases the rate of reaction and is chemically unchanged at the end of the reaction
a substance that increases the rate of reaction and is chemically changed at the end of the reaction
a substance that increases the rate of reaction and is chemically unchanged at the end of the reaction
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which word equation represents the reaction of an acid with a carbonate?
acid + carbonate → salt + carbon dioxide
acid + carbonate → salt + carbon dioxide + water
acid + carbonate → salt + hydrogen + water
acid + carbonate → salt + water
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