Can the empirical formula determined from chemical analysis be used to tell the difference between pantene C5H10 and Neptune C7H14? ​

When the volume and number of particles of a gas are constant which of the following is also constant

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

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?