1 Ionic formula

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Oxford Textbook Pages : 15 - 16

CGP Revision Guide Pages : 24

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Show Specification Ref : 2.1.2a

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Question 1 / 4

June 2015 QP – Unit 2 AQA Chemistry A-level_question_3 do not write outside the box a the elements in group from mg to ba can be used to show the trends in properties down a group in the periodic table state the trend in atomic radius for atoms of the elements down group from mg to ba give a reason for this trend marks trend reason b the group elements react with water b i state the trend in reactivity with water of the elements down group from mg to ba mark b ii write an equation for the reaction of strontium with water mark c give the formula of the hydroxide of the element in group from mg to ba that is most soluble in water mark turn over wmp jun chem
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Question 2 / 4

January 2013 QP – Unit 4 AQA Chemistry A-level_question_6 do not write outside the box describe how you could distinguish between the compounds in the following pairs using one simple test tube reaction in each case for each pair identify a reagent and state what you would observe when both compounds are tested separately with this reagent a b ch c ch oh h c ch r ch c ch ch h c oh s reagent observation with r observation with s marks ch co och ch oh co ch ch reagent observation with t observation with u marks wmp jan chem do not write outside the box c h c c ch c ch o h c ch c h reagent observation with v observation with w marks turn over for the next question turn over wmp jan chem
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Question 3 / 4

June 2011 QP – Unit 5 AQA Chemistry A-level_question_6 do not write outside the box a transition metals and their complexes have characteristic properties give the electron configuration of the zn ion use your answer to explain why the zn ion is not classified as a transition metal ion electron configuration explanation marks b in terms of bonding explain the meaning of the term complex marks c identify one species from the following list that does not act as a ligand explain your answer h o o co not a ligand explanation marks d the element palladium is in the d block of the periodic table consider the following palladium compound which contains the sulfate ion d i give the oxidation state of palladium in this compound pd nh so mark d ii give the names of two possible shapes for the complex palladium ion in this compound shape shape marks turn over wmp jun chem
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Question 4 / 4

June 2016 QP – Unit 5 AQA Chemistry A-level_question_7 the following scheme shows some reactions of chromium compounds do not write outside the box reaction reaction crcl s cr h o aq p s green solid reaction reaction reaction cr h o aq q g p s r aq green solution a write an equation for reaction mark b for reaction identify the complex p state a reagent and write an equation marks identity of p reagent equation c for reaction identify q state a reagent and write an equation marks identity of q reagent equation wmp jun chem do not write outside the box d for reaction identify the complex r state a reagent and write an equation for the formation of r from p marks identity of r reagent equation e for reaction suggest the reagents and state the colour of cr h o aq marks reagents colour turn over for the next question turn over wmp jun chem
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