ALL my unofficial, gCSE (Grade 9-1) revision help summaries are based on the NEW 2016 official AQA (Grade 9-1) gcse chemistry/combined science trilogy chemistry specifications.
Introduction to electrolysis - electrolytes, non-electrolytes, electrode equations Revision Notes Summary of death of the west buchanan pdf electrode half-equations and products Revision Notes.3.2 Electrolysis of molten ionic compounds (revision notes summary for AQA 9-1 gcse Combined Science Trilogy: Chemistry Paper 3, Topic 11 "Chemical changes Know that when.
Metallic bonding occurs in metallic elements and alloys.
Electrolysis of acidified water (dilute sulfuric acid) and some sulfate salts and alkalis Revision Notes Electrolysis of sodium chloride solution (brine) and other halide solutions - bromides, iodides Revision Notes Electrolysis of copper(II) sulfate solution (inert or copper electrodes) and electroplating Revision Notes Electrolysis.Binary, covalent, ionic only, can't see worksheet?Analysis of structures shows that atoms can be arranged in a variety of ways, some of which are molecular while others are giant structures.Calculation of energy changes or H is not required.Limited to measurement of temperature change.The pH scale, from 0 to 14, is a measure of the acidity or alkalinity of a solution, and can be measured using universal indicator or a pH probe.You should be able to: balance an equation given the masses of reactants and products change the subject of a mathematical equation substitute numerical values into algebraic equations using appropriate units for physical quantities.Introduction to bond energy/enthalpy calculations Revision Notes Q uiz on Energy Changes in Chemical Reactions Revision Notes past papers (Practice exam question papers for revising AQA 9-1 gcse Combined Science Trilogy Chemistry Paper 3, Topic 8 "Atomic structure and the periodic table Topic 9 "Bonding.Name: KEY, can't see worksheet?These compounds have high melting points and high boiling points because of the large amounts of energy needed to break the many strong bonds.Be able to recognise expressions in standard form.For a given concentration of aqueous solutions, the stronger an acid, the greater the hydrogen ion concentration and the lower the.Or (upper left mass number, lower left atomic number).The ions produced by metals in Groups 1 and 2 and by non-metals in Groups 6 and 7 have the electronic structure of a noble gas (Group 0).You should be able to explain the properties of graphite in terms of its structure and bonding.In terms of old grades the following is an approximate comparison: grades 7-9 (A-A 4-6 (C-B 1-3 (G-D U (U) (from ofqual Jan 2018) Syllabus-specification content index of revision summary notes Revision summaries for AQA 9-1 gcse Combined Science: Trilogy Chemistry Paper 1 (this page).The amount of energy in the universe at the end of a chemical reaction is the same as before the reaction takes place.
What is relative atomic mass?
The intermolecular forces between polymer molecules are relatively strong and so these substances are solids at room temperature.
These substances have only weak forces between the molecules (intermolecular forces).