National 5 Chemistry Unit 1 Chemical Changes & Structure
Authored by Mark Murray
Chemistry
5th Grade
Used 20+ times
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16 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
The graph below shows the variation of concentration of a reactant with time as a reaction proceeds. Calculate the average rate of reaction in mol l-1s-1 for the first 25s
(a)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How long does it take for the concentration to decrease to 75% of its original value?
4 seconds
2 seconds
8 seconds
6 seconds
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify the atom with 10 neutrons
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Identify the 2 isotopes
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Identify the 2 ions with an electron arrangement of 2,8,8
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Identify the 2 atoms which have 8 protons
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the simple covalent molecule
A
B
C
D
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