Water is constantly being recycled on Earth through the hydrological cycle, so there is no "new" water being formed every day. Most of the water on Earth has been here since the planet was formed.
The molecules in water are not tightly packed as such flow and spread very easily but when the water turns to ice the molecules in the liquid enlarge ans they tightly packed and thus, when water turns to ice new molecules are not formed.
No, new substances are not formed in a physical change. A physical change is a change in the form or appearance of a substance without changing its chemical composition.
If a solution is formed after the water evaporation the initial solid is obtained.
There is no new product being formed, eg. its just sugar plus water. It's not like a new substance is being formed. For example a chemical change could be Iron and oxygen, which forms something new, which is Iron Oxide. Get it?? :)
Icicles are formed by melting and refreezing water dripping from surfaces. They do not reproduce as they are not living entities. New icicles can form when conditions are right for water to freeze.
Because the water cycle produces new water everyday.
The molecules in water are not tightly packed as such flow and spread very easily but when the water turns to ice the molecules in the liquid enlarge ans they tightly packed and thus, when water turns to ice new molecules are not formed.
No, new substances are not formed in a physical change. A physical change is a change in the form or appearance of a substance without changing its chemical composition.
washing soda
When you say that there is moisture in the air it pretty much means water in the air.It is a physical change, as no new products have been formed.
Physical change. Example: ice melting into water. They're both H2O, so chemically speaking, no new substance is formed.
faris jibril cries too much everyday
Water everyday if it has not been watered naturally and cut everyday - if possible.
because it is reversible and no new substances are formed
The had food water .
It depends upon nature of substances for example when Glucose or Salt are dissolved in water no new substance is formed so these are physical changes but when Ammonia gas is dissolved in water Ammonium and hydroxide ions are formed so it is a chemical change.
- Well, pretty much because everyday you will have to "feed it" new wood or it will die out.