You can determine the concentration of acids or bases in a solution by

a. the ph scale

b. a salt

c. the periodic table of elements

Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

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).

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball