WORD Problem: Consider the reaction between silicon tetrachloride and hydrogen gas which yields a solution of hydrogen chloride (aka hydrochloric acid) and a precipitate of silicon. If 18.1 g of silicon tetrachloride reacts with 8.4 L of hydrogen gas (at STP), what mass of silicon will precipitate out?

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