The entire quiz question bank (Double only)! This quiz pulls questions at random from the entire Double-only question-bank Loading... 1. What type of reaction takes place at the anode?precipitationdisplacementoxidationreductionQuestion 1 of 10 Loading... 2. Is aluminium carbonate soluble?noyes slightlyQuestion 2 of 10 Loading... 3. What is the functional group of alcohols?-OH-COOH-C=C--C-C-Question 3 of 10 Loading... 4. For what is the separation technique of crystallisation used?To separate an insoluble solid from a liquidTo separate a mixture of different liquids that have different boiling pointsTo separate a liquid from a solutionTo obtain a dissolved salt from a salt solutionQuestion 4 of 10 Loading... 5. If iron oxide has the formula Fe₂O₃, what is the name and formula of the iron ion?iron (III) ion: Fe³⁺iron (II) ion: Fe²⁺iron (II) ion Fe³⁺iron (III) ion: Fe²⁺Question 5 of 10 Loading... 6. When magnesium burns in air, is the oxide acidic or basic?NeutralAcidicBasicDepends on conditionsQuestion 6 of 10 Loading... 7. What will happen to the equilibrium position when the temperature is decreased? Give a reason for your prediction. CO(g) + 2H₂(g) ⇋ CH₃OH(g) ΔH = –91 kJ mol⁻1Equilibrium will move to the right because the forward reaction is exothermicEquilibrium will move to the left because the forward reaction is endothermicEquilibrium will move to the left because the forward reaction is exothermicEquilibrium will move to the right because the forward reaction is endothermicQuestion 7 of 10 Loading... 8. Complete the following expression: amount (in moles) = mass / Mᵣamount (in moles) x MᵣAᵣ / MᵣMᵣ / massQuestion 8 of 10 Loading... 9. How many electrons in a magnesium ion?1012n/a (Magnesium atoms do not form ions)11Question 9 of 10 Loading... 10. Explain why magnesium oxide has a higher melting point than sodium chloride.Mg²⁺ and O²⁻ ions are larger than sodium and chloride therefore the electrostatic forces between the ions are much stronger. This requires more energy to break.Sodium chloride is a simple molecular substance so there are only weak intermolecular forces which require little energy to breakMagnesium and oxygen are more reactive elementsMg²⁺ and O²⁻ ions have a higher charge than sodium and chloride therefore the electrostatic forces between the ions are much stronger. This requires more energy to break.Question 10 of 10 Loading... Related Posts:The entire quiz question bank!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quizAlcohols & Carboxylic Acids quiz Hydr0Gen2022-03-09T21:20:41+00:00Categories: Uncategorized|Tags: Quiz| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail
