Unit 7 Chemistry Prescribed Practicals C1-C6
Acid reactions, flame tests, metal reactivity, reaction rates, hydrated crystals and preparation and testing of gases.
How to study for CCEA GCSE Double Award Science
Build each scientific explanation from a model or relationship, show quantitative working, and connect every practical claim to controlled evidence and evaluation.
Core concepts
Concept 1
The six Chemistry practicals link chemical equations and particle models to temperature, colour, mass, volume and time evidence.
Exam cue: Identify the scientific model, relationship or practical evidence required by the command word.
Concept 2
Chemical method design must control contamination, loss of product, gas escape, heating and concentration where relevant.
Exam cue: State quantities and apparatus, identify observable evidence, calculate with units and connect the result to the chemical model.
Concept 3
Chemistry Booklet A uses one current pre-release task based on but not identical to the prescribed set.
Exam cue: Use the current CCEA specification formatting and entered tier to decide whether Higher-only detail applies.
Risk pitfalls and guardrails
Giving a reagent or apparatus list without a safe sequence, control of variables and expected observations.
Guardrail: Do not import another board or science route, omit units from a calculation, or make a scientific claim beyond the stated evidence.
Giving a remembered fact without connecting it to the stated data, observation or scenario.
Guardrail: Do not import another board or science route, omit units from a calculation, or make a scientific claim beyond the stated evidence.
Importing content or paper structure from a separate-science or non-CCEA specification.
Guardrail: Do not import another board or science route, omit units from a calculation, or make a scientific claim beyond the stated evidence.
Memory anchors
C1 Acid reactions
Investigate acid reactions including temperature change.
C2 Flame tests
Identify ions using characteristic flame colours.
C3 Metal reactivity
Compare metals through controlled reaction evidence.
C4 Reaction rate
Investigate how changing one variable changes rate.
C5 Hydrated crystals
Determine the mass of water in hydrated crystals.
C6 Gas chemistry
Prepare and test hydrogen, oxygen and carbon dioxide.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
When dilute acid is added to a metal carbonate, which observation is expected?
Which net ionic equation correctly describes an acid–alkali neutralisation?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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