a gas with a pressure of 1 atm and a temp of 273.15k occupies a volume of 224L. How many moles are present ?

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

What diagram shows the ionic compound of magnesium oxide

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