A student measures the voltage across different metal electrodes placed in a voltaic cell. Using a tin cathode, the voltages when using a first an aluminum, then copper anode are positive and negative, respectively. The order of chemical reactivity of the solid metals must be a.Cu>Sn>Al b.Al=Cu>Sn c. Al=Cu d.Al>Sn>Cu
Science behind corrosion-test
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
Corrosion
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
A student measures the voltage across different metal electrodes placed in a voltaic cell. Using a tin cathode, the voltages when using a first an aluminum, then copper anode are positive and negative, respectively. The order of chemical reactivity of the solid metals must be
| a.Cu>Sn>Al | |
| b.Al=Cu>Sn | |
| c. Al=Cu | |
| d.Al>Sn>Cu |
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
