The gas state is one of the four classical states of matter (solid, liquid, gas, plasma). The gas hasn't a form, a hardness, has a low density and viscosity, easily diffuse, the intermolecular forces are not important, etc.
oxygen's physical state is gas
A physical state of a substance is whether it is solid, liquid, or gas.
gas
gas
gas
oxygen's physical state is gas
A diatomic gas
colorless is physical, gas is a physical state
GAS!
GAS
It's physical state is gas
A physical state of a substance is whether it is solid, liquid, or gas.
Hydrogen's physical state at room temperature is a gas.
A change of state: Solid <-> Liquid <-> Gas A change of state is a physical change.
gas.
It is a colourless gas at STP
it is a change of state, a physical change.