Combined Science (A) J250,04 Foundation November 2020
OCR
GCSE
Comined Sciences (J250)
Nov
2020
The document is a GCSE (9–1) Combined Science (Chemistry) A past paper. It covers essential chemistry topics, including reaction mechanisms (displacement, oxidation, cracking), periodic trends (Group 1 and Group 7 elements), and environmental science (greenhouse gases, water purification). It also assesses practical skills, such as experimental design and interpretation of results, with emphasis on industrial processes (fractional distillation, electrolysis) and material properties. Questions demand understanding of energy transfer, rates of reaction, and the reactivity series, providing a comprehensive test of applied chemistry knowledge.
باز نشر محتواها در فضای مجازی، ممنوع است.
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باز نشر محتواها در فضای مجازی، ممنوع است.
omer uner 
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