Key Reactions quiz Loading... 1. What is the pH of a weak alkali?0-38-104-712-14Question 1 of 14 Loading... 2. What do each of the following state symbols represent: (s), (l), (g), (aq)(l) - solid. (g) - liquid. (s) - gas. (aq) - aqueous (in solution)(s) - solution. (l) - liquid. (g) - gas. (aq) - water(s) - solid. (l) - liquid. (g) - gas. (aq) - water(s) - solid. (l) - liquid. (g) - gas. (aq) - aqueous (in solution)Question 2 of 14 Loading... 3. Is iron (III) hydroxide acidic or basic?Acidic (as metal hydroxides are acidic)Depends on the conditionsNeutral (as metal hydroxides are neutral)Basic (as metal hydroxides are basic)Question 3 of 14 Loading... 4. Hydrogen and helium have both been used in balloons. State one advantage of using helium instead of hydrogenHelium is lighterHydrogen is too volatileHydrogen is colouredHelium is not flammableQuestion 4 of 14 Loading... 5. What is the formula for potassium chloride?KCl₃KClKCl₂K₂ClQuestion 5 of 14 Loading... 6. In the test of a gas, a lit splint gives a squeaky pop. What is the gas?Carbon dioxideOxygenHydrogenChlorineQuestion 6 of 14 Loading... 7. What is the universal indicator colour of a neutral solution?YellowPurpleGreenRedQuestion 7 of 14 Loading... 8. State the formula for the copper (II) ionCu²⁻Cu⁻Cu²⁺Cu⁺Question 8 of 14 Loading... 9. How can metal carbonates be used to produce carbon dioxide?Burning them in air releases carbon dioxideReacting with acid releases carbon dioxideReacting with more metal leaves the metal oxide, releasing carbon dioxideThemal Decomposition: when metal carbonates are heated, they break down releasing carbon dioxide. Alternatively, the carbonate can be added to an acid.Question 9 of 14 Loading... 10. What is an acid?An acid is a compound that reacts with metalsAn acid is a source of hydrogen ions, H⁺An acid is a green solutionAn acid is a corrosive substanceQuestion 10 of 14 Loading... 11. If an element conducts electricity, is it typically a metal or a non-metal?MetalEitherNon-metalDepends on conditionsQuestion 11 of 14 Loading... 12. What is a base?A source of hydroxide ions, OH⁻A compound that reacts with an acid to form hydrogenAn unreactive form of an alkali that is used to store itA substance which can neutralise an acid, forming salt and water onlyQuestion 12 of 14 Loading... 13. Give the name of the substance which has the formula HCl (aq)hydrochloric acidchlorine hydridehydrochloratehydrogren chlorideQuestion 13 of 14 Loading... 14. State the colour of litmus in acidic and alkaline solutionsacidic = pink alkali = colourless acidic = blue alkali = red acidic = red alkali = blueacidic = colourless alkali = pinkQuestion 14 of 14 Loading... Related Posts:The entire quiz question bank!The entire quiz question bank (Double only)!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quiz Hydr0Gen2020-02-16T16:28:50+00:00Categories: Uncategorized|Tags: Quiz, Topic: Key Reactions| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail