Which color products are available, but their use is discouraged? a) temporary colors
b) off-the-scalp lighteners
c) semi-permanent colors
d) metallic and compound dyes

How many grams of n2h4 will be consumed by 23 g of n2o4

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

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.