Copper (II) tetraoxosulphate (IV) is widely used as a?A. fertilizerB. fungicideC. disinfectantD. purifier

What method uses bacteria to help extract copper from low-grade copper ores?PhytominingReduction by carbonBioleachingElectrolysis2What type of plants does phytomining depend on? Plants that can absorb copper ions from soilPlants that can detoxify copper ionsPlants that can release copper ions into soilPlants that can make copper ions during photosynthesis3What two methods can be used to extract copper from a solution of copper sulfate produced by bioleaching or phytomining?Neutralisation or reduction by carbonNeutralisation or displacementElectrolysis or displacementElectrolysis or thermal decomposition4In the electrolysis of copper, which half equation shows what happens at the negative copper electrode? 2Cu2+(aq) + 2e– → 2Cu(s)2Cu(s) → 2Cu+(aq) + 2e–Cu(s) → Cu2+(aq) + 2e– Cu2+(aq) + 2e– → Cu(s)5What is the balanced symbol equation for the displacement reaction between copper sulfate and iron?Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)Fe(s) + CuSO4(aq) → FeS(aq) + CuO4(s)FeSO4(aq) + Cu(s) → Fe(s) + CuSO4(aq)Fe(s) + CuSO4(aq) → FeO4(aq) + CuS(s)6Which of the following is not an advantage of bioleaching and phytomining over the traditional methods of extracting copper from high-grade ores?Removes toxic copper from soilMore energy efficientDoes not require miningVery fast methods

Select all that applyWhat is true regarding copper?Multiple select question.It was fully recognized as an essential nutrient in 1964.It has been used to treat diseases for at least 2000 years.It can prevent oxidation of LDL on the arterial wall.

Select all that applyWhich of the following are good food sources of copper?Multiple select question.ShellfishDark chocolateYogurtSoy milk

Which of the element’s compounds are used in the treatment of mercury poisoning?a.Copperb.Oxygenc.Sulfurd.Gold

Copper oxide is a black powder. It reacts with sulfuric acid to form a solution of copper sulfate and water.In which state is the copper oxide in this reaction?LiquidSolidAqueousGas