Oxygen is a gas at room temperature and a liquid below -218 degrees centigrade. What state of matter is it at -60 degrees centigrade

At -60 degrees centigrade, oxygen is still a gas.

What happens to the mass of a substance as it changes state?

The mass of a substance remains constant during a change of state. It does not change whether the substance is solid, liquid, or gas. The mass is a measure of the amount of matter, and as such, it is a property that is conserved throughout changes in state.

What happens to the temperature of ice as it melts?

The temperature of ice remains constant at 0 degrees Celsius (32 degrees Fahrenheit) as it melts. During the melting process, the energy provided to the ice is used to break the intermolecular forces holding the ice molecules together, rather than increasing the temperature. Once all the ice has melted, the temperature can then begin to rise again.

simplify this in a few words

The temperature of ice remains at 0 degrees Celsius while it melts.

The kinetic energy of particles in a substance changes with...

The kinetic energy of particles in a substance changes with temperature. As the temperature increases, the particles gain more kinetic energy and move faster. Conversely, as the temperature decreases, the particles lose kinetic energy and move slower.

When a liquid changes state to a gas, the potential energy of the particles...