Toxicity Which is more toxic?

Toxicity

Which is more toxic?

http://lansce.lanl.gov/training/FST2004/images04/chemicals1.gif

Burning Magnesium Metal in an Open Container

Dorin, Demmin, Gabel, Chemistry The Study of Matter , 3rd Edition, 1990, page 77

strip ofmagnesium

metal

Before burning After burning

whitepowder

strip ofmagnesiummetal

whitepowder

Burning Magnesium Metal in an Open Container

Dorin, Demmin, Gabel, Chemistry The Study of Matter , 3rd Edition, 1990, page 77

strip ofmagnesium

metal

Before burning After burning

whitepowder

strip ofmagnesiummetal

whitepowder

mass increasedMg didn’t LOSE phlogiston…

but gained oxygen!

Burning Magnesium Metal in a Closed Container

Dorin, Demmin, Gabel, Chemistry The Study of Matter , 3rd Edition, 1990, page 77

strip ofmagnesium

metal

Before burning After burning

whitepowder

nichrome wire connected

to a battery

2 Mg + O2 2 MgO mass conserved

Perception of Motion