Calcium's valence shell holds two electrons. Chlorine's valence shell holds seven electrons. Which represents the ions that are bonded in calcium chloride?
A. Ca^2+ + 2Cl-
B. Ca^2- + 2CI+
C. 2Ca+ + 2C1-
D. Ca\/2+ + Cl\/2-

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

How do i turn 2 s into one in the products