What is a naturally occurring, inorganic solid with an orderly crystalline structure and a definite chemical composition?

(1 point)

• a mineral

• an element

• an isotope

• a compound

Complete this brønsted-lowry reaction placing each product by its appropriate label. hso4- + hcn

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?