Abeaker contains 450 g of water if 9.2g of calcium fluoride is added what is the molality concentration of the solution

Which substances have the lowest melting points: ionic covalent, or metallic

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

Areaction in which products can react to re-form reactants is