Measure the density.
Melting and freezing points
check solubility properties with some table salt
The smell Refractive index if you have the equipment.
Energy must be added to liquid water so that it reaches the boiling point, at which point the water will vaporize into water vapor.
If a liquid is poured into water and falls to the bottom the density must be greater than 1.
Mars has no liquid water. For a planet to have liquid water it must be the correct distance from the Sun like Earth.
To change from a gas into a liquid you must cool the substance. For example: water vapour to water.
To change from a gas into a liquid you must cool the substance. For example: water vapour to water.
No; water (as gas) must be cooled to become a liquid - this change is called condensation..
he who alleges must prove
salt water,not pure water
It must be. Minerals and salts are dissolved in the liquid, but do not react with the water. No reaction, no compound.
By boiling the substance, you can compare the actual boiling point of water in given conditions to that of the sample. However, analogues can be made which will have an identical boiling point, yet contain little or no water at all. Hence, boiling alone cannot ascertain what something is. This holds for all physical tests - you must use chemical tests as well to determine exactly what composes a sample.
No, water can condense into a liquid state without needing to be heated. This process is called condensation, where water vapor in the air cools and transforms back into liquid water droplets. Heating water is needed to catalyze the opposite process, turning liquid water into water vapor through evaporation.
Fog occurs when the gaseous form of water (water vapor) begins to condense into water droplets (liquid water). So water is changing from a vapor (or gas) to a liquid.