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🔗 LINKS MENTIONED
Seneca: https://henry-brand-revision.kit.com/554491e96a
Chat GPT prompt: 'I'm doing GCSE [Insert exam board here] Chemistry paper 2 tomorrow. I want you to quiz me to make sure I've covered the content. Give me 10 quickfire questions (no answer), then I'll send my answers then you mark them and give me advice. I want you to build up a picture of my weaker areas'
Definitions (aqa):
🧪 Rates and Equilibrium
Activation Energy – The minimum amount of energy required for a reaction to occur.
Catalyst – A substance that increases the rate of a reaction without being used up.
Reversible Reaction – A reaction that can go both forwards and backwards.
Equilibrium – The point in a reversible reaction when the forward and backward reactions occur at the same rate.
Le Chatelier’s Principle – If conditions change in a system at equilibrium, the system shifts to counteract the change.
🧬 Organic Chemistry
Hydrocarbon – A compound made only of hydrogen and carbon.
Alkane – A saturated hydrocarbon with single bonds only (e.g., methane).
Alkene – An unsaturated hydrocarbon with at least one double bond.
Cracking – Breaking down large hydrocarbons into smaller, more useful ones using heat and a catalyst or steam.
Fractional Distillation – The process of separating a mixture (like crude oil) into components based on boiling points.
🔍 Chemical Analysis
Pure Substance – A single substance not mixed with anything else, with a fixed boiling/melting point.
Formulation – A mixture designed for a specific purpose, made by mixing components in carefully measured quantities.
Chromatography – A method used to separate substances in a mixture and identify them.
Rf Value – The ratio of the distance travelled by the solute to the distance travelled by the solvent in chromatography.
🌍 Earth and Atmosphere
Finite Resource – A resource that is being used faster than it is replaced (non-renewable).
Sustainable Development – Meeting the needs of the present without compromising future generations.
Potable Water – Water that is safe to drink (not necessarily pure).
Desalination – The removal of salts from seawater to make it potable.
🔬 Materials & Corrosion
Alloy – A mixture of a metal with other elements to improve properties (e.g. strength).
Rusting – The corrosion of iron, requiring both oxygen and water.
⌛TIMESTAMPS:
00:00 Introduction
00:30 Motivation
01:35 Practicals
02:15 Seneca
02:49 AI Revision
04:15 Practice
04:31 Guess
04:47 Definitions
05:00 Important summary
#GCSE #chem #revision