At 286 K, three gases, A, B, and C, have root-mean-square speeds of 360 m/s, 441 m/s,
and 472 m/s, respectively. Which gas is O2?

What is a property of a double replacement reaction

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.