Which balanced equation represents a phase equilibrium?

(1) H2 (g) + I2 (g) 2HI (g)

(2) 2NO2 (g) N2O4 (g)

(3) Cl2 (g) Cl2 (l)

(4) 3O2 (g) 2O3 (g)

If I have an unknown quantity of gas at a pressure of 380 mmHg, a volume of 25 L, and a temperature of 300° K, how many moles of gas do I have?

Describe the current model of the atom and the characteristics of each of the 3 subatomic particles. Be prepared to provide the number of protons, neutrons and electrons for a given element.

How are refraction and diffraction similar? How are they different? Check all that apply. Refraction and diffraction both involve the bending of waves. Refraction and diffraction both involve the bending of waves through a medium.

When you turn on the air conditioner during a hot summer day the cooler air will sink to the floor, while warmer air rises to the ceiling Which type of heat transfer is this an example of? (A) conduction (B) convection (C) radiation (D) kinetic

Which of the following is the correct definition of an inherited behavior?

Which statement would be the most useful for deriving the ideal gas law? Volume is directly proportional to the number of moles. Volume is inversely proportional to the temperature. Pressure is directly proportional to the volume.

What monomers are used to construct this polymer and where are they found?

How many moles of methane are required to produce 22g co2 after combustion

Identify and describe the appearance of the type of muscle tissue found in your heart

Calculate the coulombic force (in Newtons) felt by an electron and a proton separated by a distance of 1 angstrom. An angstrom is 10-10 meters.