Please help me with these questions asap 1. List 4 types of observations that indicate whenchemical change has occurred. 2. The chemical conversion of one product into another usefulproduct is the basis for recycling. Explain how the type ofreactions you observed in this experiment could be useful in therecycling of copper. 3. Describe the advantages and disadvantages of recyclingmetals as was done in this experiment. Please help me with these questions asap 1. List 4 types of observations that indicate whenchemical change has occurred. 2. The chemical conversion of one product into another usefulproduct is the basis for recycling. Explain how the type ofreactions you observed in this experiment could be useful in therecycling of copper. 3. Describe the advantages and disadvantages of recyclingmetals as was done in this experiment.
Explanation / Answer
Hi, four common indicators for determining if achemical reaction has occured are: 1. a color change is noticed 2. a gas is formed 3. a precipitate is formed 4. energy is given off (this may by indicated by heat). Could you give the reactions that you observed in theexperiment? I am not sure which ones you are talkingabout. One of the ones involving copper that I can think ofis the exchange of copper in solution with iron. This methodis often used to extract relatively expensive copper from solutionand replace it with cheaper iron. The advantages of recycling metals are many. To name afew, recycling metals reduces energy consumption, eases the burdenson the environment, and keeps often toxic substances out of theenvironment and drinking water. One of the disadvantagesis often the requirement of the use of other chemicals in theprocess. Hope this helps.