A level CHEMISTRY 7405/1 Paper 1 2021 MS
Bristol, City of Bristol College
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A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 2021.
- Exam (elaborations) • 26 pages • 2022
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A-level
CHEMISTRY
7405/1
Paper 1 Inorganic and Physical Chemistry
Mark scheme
June 2021. MARK SCHEME – A-LEVEL CHEMISTRY – 7405/1 – JUNE 2021
11
Question Answers Additional comments/Guidelines Mark
01.1 Heat (energy) change at constant pressure
Ignore conditions even if wrong
Ignore energy change
1
Question Answers Additional comments/Guidelines Mark
01.2
M2 Ca2+(g) + 2 e– + Cl 2(g)
M3 Ca2+(g) + 2 Cl
–
(g)
M1 Ca(s) + Cl 2(g)
Alternative M2 Ca+
(g) + e‒ + 2 Cl(g) ...
Exam (elaborations)
A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 2021.
Last document update:
ago
A-level CHEMISTRY 7405/1 Paper 1 Inorganic and Physical Chemistry Mark scheme June 2021. MARK SCHEME – A-LEVEL CHEMISTRY – 7405/1 – JUNE 2021 11 Question Answers Additional comments/Guidelines Mark 01.1 Heat (energy) change at constant pressure Ignore conditions even if wrong Ignore energy change 1 Question Answers Additional comments/Guidelines Mark 01.2 M2 Ca2+(g) + 2 e– + Cl 2(g) M3 Ca2+(g) + 2 Cl – (g) M1 Ca(s) + Cl 2(g) Alternative M2 Ca+ (g) + e‒ + 2 Cl(g) ...
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