Calculate the concentration of the solution produced when a 3.2g of sodium chloride is issolved in 8dm of water.

Iknow #2 is d. i just need to know why

What is avogadro’s number, and why is it useful

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