
	Trending ▼ ICSE CBSE 10th ISC CBSE 12th CTET GATE UGC NET Vestibulares ResFinder

UK GCSE 2008 : Foundation Tier, Chemistry Paper 1

16 pages, 50 questions, 0 questions with responses, 0 total responses,

	ccea_gcse	+Fave Message
	Profile Timeline Uploads Q & A

Home > ccea_gcse >

Formatting page ...

Centre Number 71 Candidate Number General Certificate of Secondary Education 2008 Paper 1 Foundation Tier G1401 Science: Chemistry [G1401] THURSDAY 5 JUNE, MORNING TIME 1 hour. INSTRUCTIONS TO CANDIDATES Write your Centre Number and Candidate Number in the spaces provided at the top of this page. Write your answers in the spaces provided in this question paper. Answer all five questions. INFORMATION FOR CANDIDATES The total mark for this paper is 90. Quality of written communication will be assessed in question 1(d)(i). Figures in brackets printed down the right-hand side of pages indicate the marks awarded to each question or part question. A Data Leaflet which includes a Periodic Table of the Elements is provided. For Examiner s use only Question Number 1 2 3 4 5 Total Marks G141F8 3344 Marks 1 Elements are arranged in Groups in the Periodic Table. Examiner Only Marks Remark (a) Complete the table below to give the names of some of the Groups in the Periodic Table. Group Group name I VII 0 [3] (b) The table below shows some of the elements in the Periodic Table, arranged in their Groups. Group I II Li Be Na Mg K III V VI VII 0 C Ca Al IV N O F Ne Si P S Cl Ar Br Kr Rb How many of the elements listed in the table above are: (i) gases at room temperature and pressure? _______________ [1] (ii) metals? _______________ [1] G141F8 3344 2 [Turn over (c) Use only the symbols of the elements in the table in (b) opposite to answer the questions below. Examiner Only Marks Remark (i) Write the symbol of an element which does not form compounds. ___________________________________________________ [1] (ii) Write the symbol of the element which has the lowest number of protons in the nucleus. ___________________________________________________ [1] (iii) Write the symbol of an element which forms an acidic oxide, and give the formula of the oxide. Symbol _______________ Formula ____________________ [2] (iv) Write the symbol of an element which forms an ion with a 2 charge. ___________________________________________________ [1] (d) The elements of Group I react with water. (i) State four observations you would make when potassium reacts with water. ______________________________________________________ ______________________________________________________ ______________________________________________________ ___________________________________________________ [4] Quality of written communication [2] (ii) Write a balanced symbol equation for the reaction of potassium with water. ___________________________________________________ [3] G141F8 3344 3 [Turn over (e) The graph below shows how the number of electrons in the outer shell of an atom changes as the atomic number increases. Examiner Only Marks Remark 9 Number of electrons in the outer shell 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Atomic number With the help of the Periodic Table (i) Complete the graph for the elements up to and including argon. [3] (ii) Name an element at any peak in the graph and give its electronic configuration. Name ________________________________________________ Electronic configuration _______________________________ [2] (iii) To which Group does the element with atomic number 8 belong? ___________________________________________________ [1] (iv) To which Period does the element with atomic number 14 belong? ___________________________________________________ [1] (v) How many protons are in the nucleus of the atom with atomic number 5? ___________________________________________________ [1] G141F8 3344 4 [Turn over 2 (a) Many substances dissolve in water. Some substances which dissolve in water can cause the water to be hard. Examiner Only Marks Remark What is meant by hard water? _________________________________________________________ ______________________________________________________ [2] (b) Using some tap water, a student carried out the following four tests on samples of the water in test tubes. Test Description of test Observed result 1 Addition of a solution of soap and shaking No lather formed 2a Boiling a sample of the water No observed change 2b Addition of a solution of soap to the boiled water and shaking No lather formed 3 Addition of solid hydrated sodium carbonate followed by soap solution and shaking Lather formed (i) What is the common name for hydrated sodium carbonate? ___________________________________________________ [1] (ii) What type of hardness is present in this sample of water? ___________________________________________________ [1] (iii) Explain your answer to part (ii) above. ______________________________________________________ ______________________________________________________ ______________________________________________________ ___________________________________________________ [2] G141F8 3344 5 [Turn over (c) Hard water causes household problems in terms of its effect on kettles and water pipes. Salt is added to dishwashers to aid the removal of hardness from water. The sodium ions present in the salt replace the calcium ions in the hard water. Examiner Only Marks Remark Source: www.scalewizard.co.uk (i) Suggest two advantages of hardness in a household water supply. 1. ____________________________________________________ 2. __________________________________________________ [2] (ii) Name one industry which benefits from hardness in the water supply. ___________________________________________________ [1] (iii) State the name of the method which is used to remove hardness from water in a dishwasher. ___________________________________________________ [1] www.scalewizard.co.uk G141F8 3344 6 [Turn over (d) A sample of solid calcium chloride is placed on a watch glass. A colourless liquid is observed on the watch glass after a few days. Examiner Only Marks Remark (i) Explain why the calcium chloride changed to a colourless liquid. ______________________________________________________ ______________________________________________________ ___________________________________________________ [3] (ii) Name one other substance which would undergo the same change as calcium chloride if left for a few days. ___________________________________________________ [1] G141F8 3344 7 [Turn over 3 (a) Approximately three-quarters of all elements are metals. Metals have many uses which are related to their physical properties. Examiner Only Marks Remark (i) Complete the following table. Metal Physical property Aluminium Use Low density Copper Iron Electrical wiring Strong [3] (ii) An important physical property of metals is that they are malleable. Explain the meaning of the term malleable. ______________________________________________________ ___________________________________________________ [1] (b) A student decided to investigate and compare the reactivity of some metals. The student heated a piece of copper foil in a Bunsen burner. The copper glowed a little during the reaction. copper foil tongs (i) Describe the colour of the copper foil before heating and after heating. Before heating _________________________________________ After heating ________________________________________ [2] (ii) Write a balanced symbol equation for the reaction taking place. ___________________________________________________ [3] G141F8 3344 8 [Turn over (c) The student then heated some iron filings and observed that the iron glowed red hot and produced sparks. Examiner Only Marks Remark (i) Name the product of this reaction. ___________________________________________________ [1] (ii) From the observations made, which metal, copper or iron, is more reactive? ___________________________________________________ [1] (d) Another student decided to determine the order of reactivity of the metals copper, magnesium, nickel and zinc. Each metal was heated with the oxides of the other metals and the results obtained are summarised in the table below. Metal Copper Magnesium Nickel Zinc Reaction Reaction Metal oxide Copper oxide Reaction Magnesium oxide No reaction No reaction No reaction Nickel oxide No reaction Reaction Zinc oxide No reaction Reaction Reaction No reaction Write down the order of reactivity of the four metals from the most reactive to the least reactive. Most reactive: __________________ __________________ __________________ Least reactive: __________________ G141F8 3344 [1] 9 [Turn over (e) Aluminium is more reactive than iron. A mixture of aluminium powder and iron(III) oxide is heated. A very violent reaction occurs and molten iron is produced. Examiner Only Marks Remark (i) What name is given to this type of chemical reaction? ___________________________________________________ [1] (ii) Write a balanced symbol equation for the reaction taking place. ___________________________________________________ [3] (iii) State two safety precautions that should be taken when carrying out this reaction. ______________________________________________________ ______________________________________________________ ___________________________________________________ [2] G141F8 3344 10 [Turn over 4 (a) The theory of the atom has caused debate for thousands of years. In the late 19th century, the Plum Pudding model of the atom was proposed. A diagram representing this model is shown as model 1 below. This was replaced at the beginning of the 20th century with model 2 which is also shown below. The neutron was not discovered until after these models were proposed. Examiner Only Marks Remark electrons nucleus Model 1 Plum Pudding model Model 2 (i) Describe the features of the Plum Pudding model of the atom. ______________________________________________________ ___________________________________________________ [2] (ii) Name the scientist who developed model 2. ___________________________________________________ [1] (iii) Who discovered the existence of the neutron? ___________________________________________________ [1] (iv) Suggest one feature of a neutron which made it difficult to detect. ______________________________________________________ ___________________________________________________ [1] G141F8 3344 11 [Turn over (b) The table below gives some information about four different particles, A, B, C and D. Some of the particles are atoms and some are ions. (The letters A, B, C and D are not chemical symbols.) Atomic Particle number A 18 B Mass number C 2,8,8 13 20 D 7 Remark Number Number Number Electronic of of of configuration protons neutrons electrons 40 27 Examiner Only Marks 2,8 20 14 20 10 (i) Complete the table above. [4] (ii) Particle C is an atom. Explain, using the information in the table, why particle C is an atom. ______________________________________________________ ___________________________________________________ [2] (iii) Particle D is a negative ion. What is the charge on this ion? ___________________________________________________ [1] (c) Hydrogen chloride dissolves in water and produces ions. This can be represented by the equation: HCl H+ + Cl (i) Name the ions produced. H+ ___________________________________________________ Cl ________________________________________________ [2] (ii) What is the common name for a solution of hydrogen chloride? ___________________________________________________ [1] G141F8 3344 12 [Turn over 5 Candles have been used for around 2000 years to provide light. Gas lamps were introduced at the beginning of the nineteenth century and these largely replaced candles in towns and cities until electricity became available. Examiner Only Marks Remark (a) The diagram below shows the apparatus used to test for the products of combustion of candle wax. to suction pump filter funnel candle burning watch glass anhydrous copper sulphate limewater (i) For which products of combustion are the following used to test? Limewater ____________________________________________ [2] Anhydrous copper sulphate ____________________________ [2] (ii) Complete the table below describing the appearance of the limewater and anhydrous copper sulphate at the beginning of the experiment and five minutes after it began. Substance Appearance at the beginning Appearance after five minutes Limewater [3] Anhydrous copper sulphate [3] G141F8 3344 13 [Turn over (b) The coal gas used in gas lamps in the nineteenth century was formed by heating coal in the absence of air. Examiner Only Marks Remark The apparatus below shows how impure coal gas can be formed in the laboratory. The impure coal gas is a mixture of hydrogen, methane, carbon monoxide and nitrogen. granulated coal impure coal gas heat water cold water water tarry layer (i) Suggest why the coal used to form coal gas was heated in the absence of air. ___________________________________________________ [1] (ii) Write chemical formulae for each of the gases present in the impure coal gas. hydrogen _______________ methane _______________ carbon monoxide _______________ nitrogen _______________ [4] (iii) Explain why the preparation of the impure coal gas should be carried out in a fume cupboard. ______________________________________________________ ___________________________________________________ [2] G141F8 3344 14 [Turn over (iv) State the name of the gas in the impure coal gas which will not react when coal gas is burned. Examiner Only Marks Remark ___________________________________________________ [1] THIS IS THE END OF THE QUESTION PAPER G141F8 3344 15 [Turn over Permission to reproduce all copyright material has been applied for. In some cases, efforts to contact copyright holders may have been unsuccessful and CCEA will be happy to rectify any omissions of acknowledgement in future if notified. S 2/07 530-001-1 [Turn over

Formatting page ...

Tags : gcse chemistry past papers, gcse chemistry revision notes, online gcse chemistry revision, gcse chemistry question bank, question paper of chemistry 2010, united kingdom (ccea - gcse), council for the curriculum, examinations and assessment - general certificate of secondary education, gcse past papers, gcse question papers, gcse exam, gcse old exam papers, gcse exam boards, gcse practice question papers.

ccea_gcse chat

Horizontal lines at:
Guest Horizontal lines at:
AutoRM Data:
Box geometries: