White phosphorus, p4, is prepared by fusing
calcium phosphate, ca3(po4)2, with carbon, c,
and sand, sio2, in an electric furnace.
2ca3(po4)2(s) + 6sio2(s)
+ 10c(s) --> p4(g)
+ 6casio3(l) + 10co(g)
how many grams of calcium phosphate are required to give
30.0 g of phosphorus?
think it's 150. g ca3(po4)2 (am i right or wrong? explain, )

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

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

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has: