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PP099 – Testing for positive ions: non-transition metals
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The positive ions aluminium (Al3+), potassium (K+), lead(II) (Pb2+) and ammonia (NH4+) can be tested for with simple test tube reactions. These tests are more specific than precipitation reactions wit.. more
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Members only resource
PP100 – Testing for positive ions: transition metals ions
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The metal ions cobalt(II), copper(II), iron(II) and iron(III) can be tested for with simple test tube reactions. These tests are more specific than precipitation reactions with sodium hydroxide soluti.. more
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Members only resource
PP098 – Testing for positive ions: reactions with hydroxides and ammonia
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Testing for positive ions: reactions with hydroxides and ammonia. This microscale practical is carried out on a worksheet that is laminated or placed in a plastic wallet. The method minimises the use .. more
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Members only resource
RB101 - Test reagents for positive ions
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Guidance on the preparation of reagents used to test for the presence of cations. This Recipe only includes those reagents that are not covered by other Recipe Sheets.
words matched: ions, positive
Members only resource
PP097 –Testing for common negative ions - additional ions
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The additional negative ions test tube reactions for nitrate(III), nitrate(V), sulfate(IV), phosphate and carboxylates (methanoate and ethanoate).
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Members only resource
GL369 - Qualitative Analysis
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Qualitative analysis is included in most science and chemistry courses across the 11-19 age range. This guide gives a summary/overview of the currently available CLEAPSS resources that provide detaile.. more
words matched: ions, positive
Free resource
Testing for positive ions - transition metals ions
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Testing for positive ions - transition metals ions
words matched: ions, positive
Free resource
Testing for positive ions - non transition metal ions
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Testing for positive ions - non transition metal ions
words matched: ions, positive
Members only resource
PP109 - Anion analysis: Microscale
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Common anions are tested on a plastic covered worksheet, for quick easy disposal. Using solutions with minimum concentrations allows closer observations and initiates talking points. Students can phot.. more
words matched: ions, positive
Members only resource
PP010 - a colourful catalysis reaction using cobalt(II) ions
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This activity dramatically shows the effect of a catalyst, cobalt(II) ions, on a reaction. Other characteristic properties of transition metals (eg, coloured ions, different oxidation state) can be ob.. more
words matched: ions, positive
Showing results 1 to 10 of 208
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