Water can easily change its state among solid (ice), liquid (water), and gas (vapor) through processes like freezing, melting, and evaporation. This versatility is primarily due to the hydrogen bonds between water molecules, which allow it to absorb or release energy with relatively small temperature changes. Additionally, water can dissolve a wide range of substances, making it a powerful solvent in various chemical and biological processes.
Change of state from a liquid to a solid and back again.
One example of a non-reversible physical change for water is freezing. When water freezes, it changes from a liquid to a solid state, and this change cannot be easily reversed simply by raising the temperature back to its original state.
Adding lemon to water is considered a reversible change because the lemon can be easily separated from the water by filtration or evaporation, leaving behind the original components of water and lemon. The lemon juice can be extracted again from the lemon by squeezing it, showing that the change is reversible.
A physical change is different from a chemical change in two ways:1) In a physical change no new substances are made; in a chemical change new substances are made.2) A physical change can be easily reversed; a chemical change cannot be easily reversed.Dissolving copper sulphate in water does not produce a new substance. The copper sulphate solution is a mixture, not a pure substance.Also, by evaporating the water you can easily get the copper sulphate back again.So, dissolving copper sulphate is a physical change.Sometimes, though, when water is added to copper sulphate, it reacts with the water to form copper sulphate pentahydrate, which is a new compound. This would be a chemical change, but actually dissolving it is indeed a physical change only.See these sites for more information:http://www.bbc.co.uk/schools/ks3bitesize/science/chemistry/chem_react_2.shtmlhttp://www.chem4kids.com/files/matter_chemphys.html
When a kettle is boiled, it is not a chemical change because the water molecules are simply changing state from liquid to gas due to the heat, without any change in their chemical composition. The process is reversible, as the water vapor can condense back into liquid water.
Water can go through three different states on this planet relatively easily. Water can change its different states easily.
To change aquarium water easily, you can use a siphon or a gravel vacuum to remove water and debris from the tank. Make sure to have a bucket ready to collect the old water. Refill the tank with dechlorinated water at the same temperature as the tank to avoid shocking the fish.
physical. because you can easily change it back to water form and/or a gas.
Change of state from a liquid to a solid and back again.
Water. It is the most simple liquid there is and goes through phase change so very easily!
yo it change easily dude
Yes, the boiling of water can be easily reversed by simply cooling the water vapor.
When water boils, it is a physical change.
One example of a non-reversible physical change for water is freezing. When water freezes, it changes from a liquid to a solid state, and this change cannot be easily reversed simply by raising the temperature back to its original state.
The viscosity of water decreases as temperature increases. This means that water becomes less thick and flows more easily as it gets warmer.
Adding lemon to water is considered a reversible change because the lemon can be easily separated from the water by filtration or evaporation, leaving behind the original components of water and lemon. The lemon juice can be extracted again from the lemon by squeezing it, showing that the change is reversible.
A physical change is different from a chemical change in two ways:1) In a physical change no new substances are made; in a chemical change new substances are made.2) A physical change can be easily reversed; a chemical change cannot be easily reversed.Dissolving copper sulphate in water does not produce a new substance. The copper sulphate solution is a mixture, not a pure substance.Also, by evaporating the water you can easily get the copper sulphate back again.So, dissolving copper sulphate is a physical change.Sometimes, though, when water is added to copper sulphate, it reacts with the water to form copper sulphate pentahydrate, which is a new compound. This would be a chemical change, but actually dissolving it is indeed a physical change only.See these sites for more information:http://www.bbc.co.uk/schools/ks3bitesize/science/chemistry/chem_react_2.shtmlhttp://www.chem4kids.com/files/matter_chemphys.html