In agricultural areas, farmers pay close attention to the weather forecast. right before a predicted overnight freeze, farmers spray water on crops to protect the plants. use the properties of water to explain how this method works. be sure to mention why hydrogen bonds are responsible for this phenomenon.?

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?