#1: which element has the same number of valence electrons as hydrogen (h)? a. helium (he) b. oxygen (o) c. nitrogen (n) d. lithium (li) ***my d. lithium (li) is that right?

How many molecules are found in 1.32 mol of nacl?

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

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?