The entire quiz question bank (Double only)! This quiz pulls questions at random from the entire Double-only question-bank Loading... 1. Write the word equation for the reaction between methane and brominemethane + bromine → dibromomethane + hydrogenmethane + bromine → dibromomethane + hydrogen bromidemethane + bromine → bromomethane + hydrogen bromidemethane + bromine → bromomethane + hydrogenQuestion 1 of 10 Loading... 2. Work out the empirical formula of an oxide of chlorine contains 7.1 g of chlorine and 1.6 g of oxygen. Cl₂O₂Cl₂OCl₄O₂Cl₄OQuestion 2 of 10 Loading... 3. Describe an experiment to prepare a pure, dry sample of an insoluble salt, starting from two soluble reactants1) Mix the two salt solutions together in a beaker. 2) Stir with glass rod. 3) Pour away the liquid 4) Wash with distilled water. 5) Dry by leaving in a warm place.1) Mix the two salt solutions together in a beaker. 2) Stir with glass rod. 3) Filter using filter paper and funnel 4) Wash with one of the original solutions. 5) Dry by leaving in a warm place.1) Mix the two salt solutions together in a beaker. 2) Stir with glass rod. 3) Filter using filter paper and funnel. 4) Wash with distilled water. 5) Dry by leaving in a warm place.1) Mix the two salt solutions together in a beaker. 2) Stir with glass rod. 3) Pour away the liquid 4) Wash with one of the original solutions. 5) Dry by leaving in a warm place.Question 3 of 10 Loading... 4. Which is more reactive: iron, copper, magnesium or aluminium?magnesiumironcopperaluminiumQuestion 4 of 10 Loading... 5. What will happen to the equilibrium position when we add a catalyst? Give a reason for your prediction. 2A (s) + B (g) ⇋ C (g) + D (g) (-∆H)Equilibrium will move to the left, because a catalyst increases the forward rate of reactionEquilibrium will not shift in position, because catalyst does not affect the position of equilibriumEquilibrium will move to the right, because a catalyst increases the forward rate of reactionEquilibrium will move to the right, because a catalyst increases the backward rate of reactionQuestion 5 of 10 Loading... 6. What is the universal indicator colour of a weakly acid solution?BlueGreenRedYellowQuestion 6 of 10 Loading... 7. Define the term SolventThe liquid that passes through the filter paperThe liquid which dissolves a soluteThe unit of solubilityThe substance that dissolves in a solvent, forming a solutionQuestion 7 of 10 Loading... 8. What is meant by the term exothermic?A reaction which will only be spontaneous at warm temperatures (above 100⁰C)A reaction in which heat energy is taken in (surroundings get colder)A reaction which will only be spontaneous at cold temperatures (below 0⁰C)A reaction in which heat energy is given out (surroundings get hotter)Question 8 of 10 Loading... 9. Write ionic half-equations for the reactions at the electrodes in aluminium extractionAl³⁺ → Al + 3e⁻ and 2O²⁻ → O₂ + 4e⁻Al³⁺ → Al + 3e⁻ and 2O²⁻ + 4e⁻ → O₂Al³⁺ + 3e⁻ → Al and 2O²⁻ → O₂ + 4e⁻Al³⁺ + 3e⁻ → Al and 2O²⁻ + 4e⁻ → O₂Question 9 of 10 Loading... 10. To determine the formula of a metal oxide by combustion, magnesium is heated in a crucible. Why is the crucible is cooled, weighed, reheated, cooled, re-weighed, and so on?To ensure all the magnesium oxide to escapeTo make sure the mass is still going down so the magnesium is still reactingTo make sure a constant mass has been reached and there is no more magnesium left to reactTo allow any water to escapeQuestion 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! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail