Which of the following metals will react vigorously with oxygen at room temperature?CalciumCopperPotassiumGold2What is the balanced equation for the reaction of sodium with oxygen?Na + O2 → NaO2Na + O2 → NaO2Na + O2 → 2NaO24Na + O2 → 2Na2O3What are the products of the reaction of calcium with water?Calcium oxide and oxygenCalcium hydroxide and oxygenCalcium hydroxide and hydrogenCalcium oxide and hydrogen4What are the products of the reaction of zinc with sulfuric acid?Zinc sulfate and carbon dioxideZinc sulfate and oxygenZinc sulfate and hydrogenZinc sulfate and water5What would you expect to see when magnesium reacts with hydrochloric acid?Bubbles/fizzingA white solidA purple/lilac flameNo change6Which of the following statements about the reactivity series is not true?Metals at the top of the table react with oxygen, water and acidsMetals in the middle of the table react with oxygen and acids, but not with waterMetals at the top of the table are unreactiveMetals at the bottom of the table are unreactive