Learn vocabulary, terms, and more with flashcards, games, and other study tools. 2 SPECIMEN MATERIAL 0 1 This question is about mixtures and analysis. AQA. This page contains the AQA GCSE Chemistry C9 Hydrocarbons Questions and kerboodle answers for revision and understanding Hydrocarbons.This page also contains the link to the notes and video for the revision of this topic.. C9.1 Crude Oils and Fuels AQA GCSE Chemistry C9 Hydrocarbons Kerboodle Answers Page No 149. a. Most metals on the Periodic Table are classed as transition metals, and these metals typically:. 105 marks of short and long answer questions 1 This question is about temperature changes. Instructions Use black ink or black ball-point pen. 59 Co cobalt 27 103 Rh rhodium 45 192 Ir iridium 77 [268] Mt meitnerium 109 59 Ni nickel 28 106 Pd palladium 46 195 Pt platinum 78 [271] Ds darmstadtium 110 63.5 Cu copper 29 108 Ag silver 47 197 Au gold 79 ... GCSE Science Chemistry Data sheet Chemistry Author: AQA Subject: GCSE Science Chemistry Keywords: Le Chatelier’s principle is used to predict a colour change. For each of the exam boards below, there are revision notes, factsheets, questions from past exam papers separated by topic and videos. Cobalt(II) solutions produce a blue cobalt(II) hydroxide precipitate when sodium hydroxide solution is added. 37 terms. Identify the cobalt-containing species present in aqueous cobalt(II) sulphate and in the precipitate M. Relevant physical chemistry topics (sections 3.1.1 to 3.1.4, 3.1.6 to 3.1.8 and 3.1.10 to 3.1.12) Inorganic chemistry (section 3.2) Relevant practical skills; Assessed. 1 (a) A student investigated the temperature change when 8 g of sodium nitrate dissolves in 50 cm3 of water. <= back AQA GCSE chemistry Topic 4 "Chemical Changes" revision summary REPEAT QUIZ - fresh Q's. are malleable (can be hammered or rolled into shape without shattering); are ductile (can be stretched out to make thin wires); have high melting points; have high density; are good conductors of electricity and heat; are shiny when polished; form coloured compounds 2 Draw one line from each context to the correct meaning. Reactions of cobalt(II) ions in solution. Figure 1 shows the apparatus the student used. GCE CHEMISTRY UNIT 5 SPECIMEN/VERSION 1.1 10 _____ 7 4 (a) When aqueous ammonia was added to an aqueous solution of cobalt(II) sulfate, a blue precipitate M was formed. A-Level Chemistry Tests. [ab-105] ? This page looks at some aspects of cobalt chemistry required for UK A' level exams. Author: Created by greenAPL. This worksheet and answer sheet is aimed at post 16 chemistry students and covers the transition metal: cobalt. [2 marks] Title: GCE Chemistry Unit CHM5 - Mark Scheme June 2002 Author: AQA Created Date: 4/17/2003 2:04:07 PM The ligands NH 3 and H 2 O are similar in size and are uncharged. Instructions • Answer . New A-level 2015 The revision guides are split into physical, inorganic and organic chemistry. Chemistry (7405/1) Paper 1: Inorganic and Physical Chemistry . [Co(H 2 O) 6] 2+ + 2OH-[Co(H 2 O) 4 (OH) 2] + 2H 2 O. Chemistry CHEM5 Unit 5 Energetics, Redox and Inorganic Chemistry Monday 15 June 2015 1.30pm to 3.15pm For this paper you must have: the Periodic Table/Data Sheet, provided as an insert (enclosed) a ruler with millimetre measurements a calculator. The description below outlines one way to carry out the practical. Chemistry Revision Get ready for your mocks with our two-day online course on 20-21st December. cobalt oxide + sulfuric acid ? Learn vocabulary, terms, and more with flashcards, games, and other study tools. Warning: This is pretty tough. Fill in the boxes at the top of this page. In this demonstration the equilibrium between two different coloured cobalt species is disturbed. COMPLEX IONS [ edit ] A complex ion is an ion comprising one or more ligands attached to a … ... AQA Chemistry. The transition metals are as follows: However, Zn is not a transition metal… 7 Li lithium 3 23 Na sodium 11 39 K potassium 19 85 Rb rubidium 37 133 Cs caesium 55 [223] Fr 87 * The Lanthanides (atomic numbers 58 – 71) and the Actinides (atomic numbers 90 – 103) have been omitted. A* Chemistry GCSE, IGCSE, A-Level, IB and University Chemistry Resources & Revision for all exam boards. Cobalt Chloride Paper . Created: Mar 31, 2015 | Updated: Jul 1, 2017. The water molecules are all neutral, so the overall charge on the complex ion is 3+ + 0 = 3+ The formula of the complex is written [Co(H 2 O) 6] 3+ The hexaammine nickel (II) ion at the right has six ammonia molecules surrounding the central nickel 2+ ion in an octahedral arrangement. Chemical equilibria, Le Chatelier's principle and Kc. Based on real AQA past exam papers . There is no change on adding excess sodium hydroxide solution. The first row d-block elements which are also transition metals are therefore titanium, vanadium, chromium, manganese, iron, cobalt, nickel and copper. 47 terms. 3.1 Physical chemistry; 3.2 Inorganic chemistry; 3.3 Organic chemistry; CIE. Notes. all . Notes. A-level CHEMISTRY Unit 5 Energetics, Redox and Inorganic Chemistry Wednesday 22 June 2016 Time allowed: 1 hour 45 minutes Materials For this paper you must have: the Periodic Table/Data Sheet provided as an insert (enclosed) a ruler with millimetre measurements a calculator. ... cobalt (II) Co²⁺ tin (II) Sn²⁺ ... AQA A-Level Chemistry (new spec) 1.3 Bonding. Information • … Time allowed 1 hour 45 minutes Instructions Use black ink or black ball-point pen. For this paper you must have: • the Data Booklet, provided as an insert • a ruler • a calculator. Relative atomic masses for Cu and Cl have not been rounded to the nearest whole number. cobalt + hydrochloric acid ? This worksheet and answer sheet is aimed at post 16 chemistry students and cobalt, Co and its transition metal chemistry. questions. The acid and solid need to be chosen. The simplest ion that cobalt forms in solution is the pink hexaaquacobalt(II) ion - [Co(H 2 O) 6] 2+. [2 marks] Tick two boxes. There are no modules. 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