Lead is a highly poisonous metal. The mass percentage of lead in the 250 g aqueous solution was found to be 1.2 x 100%
by extracting the lead with an excess of iodide and weighing the resulting PbL. How many micrograms (ug) of lead iodide
were measured?

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic