Johnnie Meza Marino, a Mexican American soldier from Texas, told The Voces Oral History Center in 2001 that his unit liberated the Hadamar and Bergen-Belsen concentration camps in Germany.

Save guides, add subjects and pick up where you left off with your BBC account. The units for concentration are also shown as g/dm 3, but this means the same as g dm-3. 8 g of sodium hydroxide is ...

Save guides, add subjects and pick up where you left off with your BBC account. The units for concentration can also be shown as g dm-3, but this means the same as g/dm 3. 8 g of sodium hydroxide ...