A limestone is a common form of calcium carbonate. When limestone is subjected to high heat, it becomes calcium oxide and releases carbon dioxide gas. This change in limestone at a given temperature is an example of — a physical change like the melting of ice a chemical change like the rusting of iron
an igneous change like the melting of rock in a volcano
a reversible change such as hardening melted butter

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.

If maltose undergoes hydrolysis what subunits does it results to?

The term gas is limited to those substances that exist in the gaseous state at