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solid
Phenol at 25 C degrees is a solid.
The state of water at -25 C is solid. Water freezes at 0 degrees Celsius.
Gaseous state.
Hardness and density are physical properties, not changes.
solid
Mercury's state at 25 degrees Celsius is liquid.
solid
It is liquid.
The state of matter would be solid
solid
It is a liquid.
Magnesium oxide is a solid.
Ammonium is the ion (NH4)+. If you think to ammonia (NH3) this is a gas at 25 0C.
Calcium is in a solid state at 25 degrees.
Gold is a solid at 25 degrees.
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