GCSE
Chemistry
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Introduction to GCSE Chemistry (AQA) Coming soon
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1.1 Atomic Structure, Elements, Compounds, and Mixtures
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1.2 The Periodic Table Coming soon
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2.1 Chemical Bonds, Ionic, Covalent and Metallic Coming soon
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2.2 How Bonding and Structure are Related to the Properties of Substances Coming soon
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2.3 Structure and Bonding of Carbon Coming soon
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2.4 Bulk and Surface Properties of Matter including Nanoparticles Coming soon
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3.1 Chemical Measurements, Conservation of Mass and the Quantitative Interpretation of Chemical Equations Coming soon
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3.2 Use of Amount of Substance in Relation to Masses of Pure Substances Coming soon
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3.3 Yield and Atom Economy of Chemical Reactions Coming soon
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3.4 Using Concentrations of Solutions in mol/dm³ [HT] Coming soon
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3.5 Use of Amount of Substance in Relation to Volumes of Gases [HT] Coming soon
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4.1 Reactivity of Metals Coming soon
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4.2 Reactions of Acids Coming soon
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4.3 Electrolysis Coming soon
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5.1 Exothermic and Endothermic Reactions Coming soon
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5.2 Chemical Cells and Fuel Cells Coming soon
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6.1 Rate of Reaction Coming soon
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6.2 Reversible Reactions and Dynamic Equilibrium Coming soon
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6.2.1 Reversible Reactions
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6.2.2 Energy Changes and Reversible Reactions
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6.2.3 Equilibrium
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6.2.4 The Effect of Changing Conditions on Equilibrium (HT only)
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6.2.5 The Effect of Changing Concentration (HT only)
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6.2.6 The Effect of Temperature Changes on Equilibrium (HT only)
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6.2.7 The Effect of Pressure Changes on Equilibrium (HT only)
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6.2.1 Reversible Reactions
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7.1 Carbon Compounds as Fuels and Feedstock Coming soon
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7.2 Reactions of Alkenes and Alcohols Coming soon
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7.3 Synthetic and Naturally Occurring Polymers Coming soon
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8.1 Purity, Formulations and Chromatography Coming soon
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8.2 Identification of Common Gases Coming soon
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8.3 Identification of Ions by Chemical and Spectroscopic Means Coming soon
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9.1 The Composition and Evolution of the Earth's Atmosphere Coming soon
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9.2 Carbon Dioxide and Methane as Greenhouse Gases Coming soon
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9.3 Common Atmospheric Pollutants and their Sources Coming soon
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10.1 Using the Earth's Resources and Obtaining Potable Water Coming soon
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10.2 Life Cycle Assessment and Recycling Coming soon
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10.3 Using Materials Coming soon
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10.4 The Haber Process and the use of NPK Fertilisers Coming soon
1. Atomic Structure and the Periodic Table
8.1.2 Formulations
A formulation refers to a carefully designed mixture of different substances that has been created to serve a specific purposeThe reason for writing (to inform, persuade, describe, etc.). and provide desired properties. Formulations are used to make a wide range of products that we encounter in our daily lives. These products can be complex mixtures where each chemical component has a specific function and contributes to the overall performance of the product.
Formulations are created by combining the components in precise and measured quantities to ensure that the final product possesses the desired properties. The composition and proportions of the components are carefully determined to achieve the intended functionality, stability, and effectiveness of the formulation. The components can be chosen based on their chemical properties, solubility, reactivity, and compatibility with other ingredients.
Examples of formulations include fuels, such as gasoline and diesel, which are complex mixtures of hydrocarbons designed to provide efficient combustion and energy release.
- Cleaning agents, such as detergents and soaps, are formulated to remove dirt and grease from surfaces effectively.
- Paints consist of various pigments, binders, solvents, and additives, formulated to provide specific colours, durability, and application properties.
- Medicines are formulated to deliver drugs in a controlled and effective manner.
- Alloys are formulated mixtures of metals with specific properties, such as strength, corrosion resistance, or electrical conductivity.
- Fertilisers are formulated to provide essential nutrients for plant growth.
- Even foods can be considered formulations, as they are carefully composed to achieve desired taste, texture, and nutritional value.
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