Gases
This is a gas.
There are empty spaces between the particles of matter that are very large and that can be used to identify a substance because they never change.
The mass of an object remains the same when it changes state, such as from solid to liquid or gas. Mass is a measure of the amount of matter in an object, and this does not change during a change in state.
A change of state does not affect an object's mass because mass remains constant regardless of the state of matter (solid, liquid, gas). The state change only impacts the arrangement and movement of the particles within the object, not the total amount of matter it contains.
Factors such as the amount of a substance, its chemical composition, and the presence of impurities will not change its state of matter. For instance, heating or cooling a substance can change its state (e.g., solid to liquid), but simply having more or less of the same substance at the same temperature and pressure will not alter its state. Additionally, the state of matter remains unchanged as long as the temperature and pressure conditions stay constant.
The state of matter remain unchanged.
When matter changes state, the amount of mass and the amount of energy are always conserved. This means that the total mass and energy of the system remain constant throughout the phase change.
no physical change does not change matter
Change of state.
state of matter
The state of matter remain unchanged.
a change in size, shape or the state of matter is a physical change. True for A+.