The Lewis dot model of an atom has seven dots. Which of the following is true about the atom? A) it has seven energy levels.
B) it has one valance shell electron.
C) it requires one electron to complete it’s octet.
D) it requires seven other atoms to form a stable compound.

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

What is the volume of 2.5 moles of nitrogen gas (n2)at standard temperature and pressure (stp)?