redox reaction
A miser is ever in want.
--Greek proverb
Preparing to experiment
You will be provided with the following materials:
Redox Reactions
Reactions involving oxidation and reduction processes are very important in our everyday world. They make batteries work and cause metals to corrode (or help to prevent their corrosion). They enable us to obtain heat by burning fuels--in factories and in our bodies.
Many redox reactions are complex. However, combustion and synthesis (from elements) are two ordinary examples which require very little description. Just a little more involved are the displacement reactions, with which this exercise is mainly concerned. Your text book divides these processes into three categories:
•
•
•
hydrogen displacement metal displacement halogen displacement
You may remember (?) how to tell if a chemical reaction is occurring by looking at the behavior of a combination of chemicals, but can you predict whether or not a reaction like those above will happen?
Displacement reactions involve an element, and a compound containing a
"similar" element. "Similar" can mean both metals, or it can simply mean both + or both
-. In any case, the general rule that applies is like displaces like.
Copper and silver are both metals (both positive in compounds) and are both used for coinage and jewelry. So what will happen if a drop of solution containing silver ions is placed on a piece of copper metal? What will happen if a drop of solution containing copper ions is placed on a piece of silver metal?
Chlorine and bromine are both non-metals (both negative in compounds) and both are used for disinfecting and bleaching. What will happen if chlorine is added to a solution containing bromide ions? What will happen if bromine is added to a solution containing chloride ions?
Permanganate ions (MnO4-) react with iron(II) ions (Fe2+) in acid solution.
What about the ratio in which these ions react? Does the balanced equation
--Greek proverb
Preparing to experiment
You will be provided with the following materials:
Redox Reactions
Reactions involving oxidation and reduction processes are very important in our everyday world. They make batteries work and cause metals to corrode (or help to prevent their corrosion). They enable us to obtain heat by burning fuels--in factories and in our bodies.
Many redox reactions are complex. However, combustion and synthesis (from elements) are two ordinary examples which require very little description. Just a little more involved are the displacement reactions, with which this exercise is mainly concerned. Your text book divides these processes into three categories:
•
•
•
hydrogen displacement metal displacement halogen displacement
You may remember (?) how to tell if a chemical reaction is occurring by looking at the behavior of a combination of chemicals, but can you predict whether or not a reaction like those above will happen?
Displacement reactions involve an element, and a compound containing a
"similar" element. "Similar" can mean both metals, or it can simply mean both + or both
-. In any case, the general rule that applies is like displaces like.
Copper and silver are both metals (both positive in compounds) and are both used for coinage and jewelry. So what will happen if a drop of solution containing silver ions is placed on a piece of copper metal? What will happen if a drop of solution containing copper ions is placed on a piece of silver metal?
Chlorine and bromine are both non-metals (both negative in compounds) and both are used for disinfecting and bleaching. What will happen if chlorine is added to a solution containing bromide ions? What will happen if bromine is added to a solution containing chloride ions?
Permanganate ions (MnO4-) react with iron(II) ions (Fe2+) in acid solution.
What about the ratio in which these ions react? Does the balanced equation