Which of the following is not an acid-base neutralization reaction? (3 points) nh3 + hcl yields nh4cl naoh + ch3cooh yields na ch3coo + h2o 2hno3 + ca(oh)2 yields ca(no3)2 + 2h2o h2so4 + 2nacl yields 2hcl + na2so4

The answer for #3 is c but i don't know why

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.