Which metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe?

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

Avariable that is not being directly tested during an experiment should be

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude