Your instructor will first, pour ~ 2ml of dilute HCl(aq)solution into a small test tubeand willthen add a few drops of phenolphthalein indicator to the same test tube. At the end, she/he willadd ~ 3ml of dilute NaOH(aq)solution to the test tube. Write down your observation

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

What layer of the atmosphere is directly above the troposphere?

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