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1- industries remove pollutant gases from smoke stacks in a process called ________
2- a metal can be ___________ in order to purify it, if it has a low boiling point
3- the process of reacting the desired metal and drawing it out of the other materials in the ore is called ___________
4- _________ can also be used to purify metals
5- lustre, malleability and ductility are properties of ___________
6-most metals in nature are found in the form of compounds called ______________
7-minerals are ussualy found mixed with many less usefull __________ in rocks
8- steel samurai swords were made in a ________
9- many metals become more usefull when they are melted and mixed with other metals to form ___________
2- a metal can be ___________ in order to purify it, if it has a low boiling point
3- the process of reacting the desired metal and drawing it out of the other materials in the ore is called ___________
4- _________ can also be used to purify metals
5- lustre, malleability and ductility are properties of ___________
6-most metals in nature are found in the form of compounds called ______________
7-minerals are ussualy found mixed with many less usefull __________ in rocks
8- steel samurai swords were made in a ________
9- many metals become more usefull when they are melted and mixed with other metals to form ___________