Hydrochloric acid and sodium hydroxide are mixed together to form salt and water. during the reaction, the temperature of the solution increases. which of these best explains why this is considered to be a chemical change?

What will most likely happen when two bromine atoms bond together?

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.

When the mercury level in a barometer decreases that atmospheric pressure has