Temperature is a measure of the average energy of motion of an object's particles. Sometimes, if enough heat is added to or removed from an object, it can change its state. Which of the following can occur if the temperature decreases in a system? A solid becomes a liquid

A liquid becomes a gas

A solid becomes a gas

A liquid becomes a solid

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

What structural formula represents 4 electrons shared between two atoms?