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Doc
Brown's Chemistry Clinic
My unofficial
support for Salters
AS
Advanced Chemistry
Salters AS Chemistry - M From
"Minerals to Elements"
M Unit map and learning objectives list - part of module 2848
M exam bashing thoughts *
other M backup material * My
revision index * My Salters AS homepage
* My Salters A2 homepage *
Email
PLEASE REMEMBER, THESE ARE NOT 'STAND ALONE' NOTES, and were designed for my
classes for use alongside the Salters resources - Chemical Ideas, Chemical
Storylines, Practical Activities-Investigations and the AS-A2 Revision guides
all published by Heinemann Secondary Series, to reduce the reading workload and
offer a study strategy. From your
teacher (not me!), its handy to have the answers to the Chemical Ideas,
Storylines Assignments and Activities Questions side by side with the texts and
these strategy pages. You haven't time to redo the Q's but a quick read of the
Q's and connecting with the official answers is valuable revision. |
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M1.1 Solutions of ions
M1.2 Bromine production
M1.3 Halogens and their compounds
M1.4 This liquid is dangerous
M1.5 Manufacturing chlorine |
M1 CHEMICALS FROM THE SEA: |
5.1 Ions in solids and solutions
9.1 Oxidation and reduction
2.4 Electronic Structure: sub-shells and
orbitals
11.4 The p-block: Group 7 The Halogens |
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M2.1 Mineral spotting
M2.2 Getting at the minerals
M2.3 Extracting copper
M2.4 Finding out how much acid there is
in a solution
M2.5 The philosopher's microbe
M2.6 Molecules and networks |
M2 COPPER FROM DEEP UNDERGROUND: |
1.5 Concentration of solutions
8.1 Acid-base reactions
5.2 Molecules and networks
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Unit
M Learning Outcomes
KEY: CS = Chemical
storylines, CI = Chemical Ideas, Act = Activity: be
able to
- O use the concept of amount of substance to perform calculations involving: molar relationships and concentrations of solutions (volumetric calculations) [CI 1.5; Act’s M1.5/2.4]
but please note other calculations will crop up eg
% composition, empirical formula, reacting mass in g or kg, % of a metal in a rock - based on
% of its compound in the rock. Practice
in the basics
- O use s, p, d conventions for representing the distribution of electrons in atomic orbitals (no treatment of the shapes of atomic orbitals is expected) [CI 2.4]
see LO's 3.-4. and show electron configurations as 'box diagrams' too.
- O recall the
classification of elements into s, p and d blocks in the Periodic Table [CI
2.4/11.4; M2 copper] essentially classifying by outer
electron shell character
- O deduce (given the atomic number)
the electronic configuration of atoms from hydrogen to krypton in terms of main energy levels and s, p and d atomic orbitals [CI 2.4]
including the 3d block of Transition Metals, explain why Ti to Cu ARE true transition elements in electronic terms.
- O recall the following physical properties of the halogens
[CI 11.4; Act M1.3] Gp7 basics
- (a) appearance and state at room
temperature
- (b) volatility
- (c) solubility in water and organic solvents
- O assign oxidation states to the elements in a compound or ion [CI 9.1; CS M1/M2 eg Ass’s 5/6/10; Acts M1.2/1.3/1.5]
Some examples and rule in CI9.1 notes
- O use oxidation states to decide which species have been oxidised and which reduced in a redox
reaction [CI 9.1; CS M1/M2 eg Ass’s 5/6/10; Acts M1.2/1.3/1.5] Recognise
which reactant is the oxidising agent and which is the reducing agent.
Disproportionation
is when an element in a reactant is both oxidised (higher ox. state in one
product) and reduced (lower ox. state in another product)
- O describe redox reactions of s-block and p-block elements in terms of electron
transfer, using half-equations to represent the oxidation and reduction reactions
and combining them to give overall redox-ionic equations [CI 9.1; CS M1; Acts M1.2/1.3/1.5]
- O explain the redox changes, which take place when chlorine, bromine and iodine
(X2) react with other halide ions
(X-) [CI 9.1; CS M1; Act M1.3]
- O explain the redox changes occurring in the extraction of bromine from seawater [CS M1; Act M1.2]
- O compare the relative reactivity of the halogens
[CI 11.4; Act M1.3]
- O recall the reaction between halide ions and silver ions
eg observations of the precipitation reaction (NOT
redox), ionic equations, use of silver nitrate + dilute nitric acid
as simple test for chloride, bromide or iodide ion etc. [CI 5.1/11.4; Act M1.2]
- O show awareness of the health and safety precautions needed in industry when hazardous chemicals are being stored, transported and used eg bromine shipments [CS M1; Act M1.4]
- O show awareness of the economic importance of bromine and chlorine and their
compounds, and also the uses of hydrogen and sodium hydroxide (from brine electrolysis) [CI 11.4; CS M1; Act M1.3]
- O describe the structure
and physical properties of an ionic
lattice, exemplified by sodium chloride [CI 5.1]
- O write ionic equations to represent precipitation reactions
(eg Ag salts) and other reactions involving ionic compounds (eg
oxide/hydroxide/carbonate + acid) [CI 5.1/11.4; Act M1.1]
- O describe the hydration of ions in aqueous solution
eg labelled sketches [CI 5.1]
- O describe and explain the major stages in the extraction of a pure metal from its ore [CS M2; Act’s M2.2/2.3]
can include rates of reaction factors from CI 10.1, copper smelting, purification of
copper by electrolysis, redox concepts and tend to be 'open-ended'
interpretation questions.
- O show awareness of the scale and importance of mineral extractive industries and discuss the environmental implications of mineral extraction [CS M2 and Ass 7; Act M2.4/2.5]
- O interpret flow diagrams showing the sequence of operations in a chemical process [CS
M1 for Br extraction and CS M2 for Cu extraction; Act M1.2]
rates of reaction factors may be included
- O recognise from the balanced equation for a reaction whether it is an acid-base, redox or precipitation reaction [CI 8.1/9.1; Act M1.1]
watch out for overlap of terms for a particular reaction
- O recall that acid-base reactions involve proton transfer,
define an acid or a base in terms of donating or accepting a proton
[CI 8.1; Act M2.4]
- O identify the proton donor and proton acceptor in an acid-base reaction [CI 8.1; Act M2.4]
and be aware that when an acid reacts with a base, a conjugate acid and base
are formed in the process
- O recall the procedure for carrying out an acid-alkali titration and be able to work out the results (volumetric procedures,
name/describe apparatus, indicator/end-point, calculations) [CI 1.5/8.1; Act M2.4]
also need to be able to do calculations involving
sodium thiosulphate and iodine
- O recall the procedure for vacuum filtration
and sketch and label the apparatus [Act M2.3] a
few procedural details for reduced pressure filtration eg washing solid with
a little clean solvent
- O describe examples of giant covalent (network) structures, such as diamond and silicon(IV) oxide
(silicon dioxide) [CI 5.2; Act M2.6]
- O interpret differences in the physical properties of CO2 and SiO2 in terms of their different structures [CI 5.2; Act M2.6]
For LO's 26-27 you may need all the details of covalent bonding from ox
diagrams, electronegativity etc. etc.
GENERAL
REVISION
NOTES

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