What happens when Copper is boiled with concentrated sulfuric acid? Answer: Boiling copper with strong sulfuric acid produces copper sulphate, sulfur dioxide and water. Cu + 2H2SO4 = CuSO4 + SO2 ↑ + 2H20
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What happens when iron reacts with hot concentrated nitric acid? Answer: Iron reacts with hot dark nitric acid to produce ferric nitrate and nitrogen dioxide. Fe + 6HNO3 = Fe(NO3)3 + 3NO2 + 3H2O
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What happens when an iron spoon is dipped in an acidified copper sulfate solution? Answer: Immersion of an iron spoon in acidified copper sulphate solution leaves a reddish copper coating on the spoon and ferrous sulphate is produced. CuSO4 + Fe = FeSO4 + Cu ↓
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What happens when steam is run on a red-hot iron? Answer: Steaming over red-hot iron produces Ferrosoferric oxide and hydrogen. 3Fe + 4H2O = Fe3O4 + 4H2 ↑
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What happens when a zinc rod is dipped in a copper sulfate solution? Answer: When a zinc rod is immersed in a blue copper sulphate solution, red copper is precipitated and colourless zinc sulphate is produced. The resulting solution is colourless. CuSO4 + Zn = ZnSO4 + Cu ↓
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What happens when Zinc is heated in a concentrated caustic soda solution? Answer: When zinc is heated in a concentrated caustic soda solution, sodium zincate salt and hydrogen gas are produced. Zn+2NaOH = Na2ZnO2 + H2 ↑
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What happens when metallic magnesium reacts with very weak nitric acid? Answer: The reaction of magnesium with very weak nitric acid produces magnesium nitrate and hydrogen. Mg +2HNO3 = Mg(NO3)2 + H2 ↑
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Answer: When a burning magnesium ribbon is introduced into a gas jar full of CO2, the magnesium burns and the CO2 is reduced by the magnesium to carbon. 2Mg + CO2 = 2MgO + C
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What happens when magnesium metal is dissolved in dilute HCl? Answer: Magnesium reacts with dilute hydrochloric acid to produce magnesium chloride and hydrogen gas. Mg + 2HCl = MgCl2 + H2 ↑
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What happens when magnesium metal is burned in the air? Answer: When burned in the air, magnesium metal burns with a bright white flame and combines with oxygen and nitrogen in the air to produce magnesium oxide and magnesium nitride, respectively. 2Mg + O2 = 2MgO 3Mg + N2 = Mg3N2
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