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 Reactivity 30 Flashcards |
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Which metal is the most reactive according to the reactivity series? |
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Potassium (K) |
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Fill in the blank: A ______ reaction occurs when a more reactive metal displaces a less reactive metal in a compound. |
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Displacement |
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True or False: Gold is more reactive than iron. |
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False. Gold is less reactive than iron. |
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What type of reaction is represented by the equation CuSO₄ + Fe → FeSO₄ + Cu? |
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Displacement reaction |
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Riddle: I am formed when an acid reacts with a base, producing water and a salt. What am I? |
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Neutralization |
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Which of the following metals can displace iron from iron oxide? A) Copper B) Sodium C) Gold D) Aluminium |
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D) Aluminium |
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Fill in the blank: The law of ______ states that mass is neither created nor destroyed in a chemical reaction. |
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Conservation of mass |
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True or False: An endothermic reaction releases energy into the surroundings. |
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False. An endothermic reaction absorbs energy from the surroundings. |
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What is produced when sodium bicarbonate reacts with citric acid? |
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Sodium citrate, water, and carbon dioxide |
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Riddle: I am a reaction that absorbs energy, often causing a cooling sensation. What am I? |
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Endothermic reaction |
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Which of the following is a product of the thermite reaction? A) Aluminium B) Iron C) Carbon D) Magnesium |
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B) Iron |
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Fill in the blank: When calcium carbonate reacts with sulfuric acid, it produces ______, water, and carbon dioxide. |
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Calcium sulfate |
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True or False: The reaction of potassium with water is an example of an endothermic reaction. |
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False. It is an exothermic reaction. |
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What type of chemical equation is represented by the reaction of zinc with hydrochloric acid? |
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Single displacement reaction |
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Riddle: I am a compound used for food preservation, made from sodium and chlorine. What am I? |
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Sodium chloride (table salt) |
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Completed! Keep practicing to master all of them. |
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