No. There is a phase change as the water is converted into steam, but no chemical reaction occurs. A chemical reaction is when elements or molecules recombine to form other substances. For example, mixing hydrochloric acid with magnesium produces magnesium chloride, and hydrogen gas is given off. Another chemical reaction is the simple oxidation (rusting) of iron, which forms iron oxide.
it causes a physical change, because no new substance is being formed.
It is not a chemical reaction. It is a physicalchange. Water is H2O and steam is H2O. Water is liquid and steam is vapor.
No, boiling water is a physical change, not a chemical one. The water molecule remains the same (H2O), only changes its state from a liquid to a gas.
Boiling is only a physical process.
no. physical.
no it will happen adventually
No. That is a physical change of the liquid water turning to gas (steam)
NO!!!! It is a physical change of water from liquid to gas(vapour).
The change from liquid water to steam is a physical change in the state of matter. Evaporation is the term for a liquid becoming a gas.
If the steam is being produced by boiling water the physical property is gas and the chemical properties are H2O.
Steam. Liquids turn to solids when they reach a temperature, so steam has to be hotter than boiling water.
Water boiling is a physical change and not a chemical reaction. In a physical reaction there is no new substance formed as is the case with chemical reactions. In boiling water there is no new substance produced.
No. That is a physical change of the liquid water turning to gas (steam)
yes
Its a chemical reaction :]
When they say boiling water they mean some water is turning to steam but not all off the water has to be over 100 degrees for some to be boiling.
Chemical changes are those in which the chemical composition of a substance changes during the process. But when steam turns into water or vice versa, only the physical state of the substance undergoes a change but the chemical composition remains same. Thus steam turning into water is a physical change.
yes and no, it depends on what you would consider a chemical reaction. most people define a chemical reaction as when two or more chemicals react together, steam escaping from a pot, however, is not two chemicals, it is just water evaporating and condensing in the air to make steam which is hotter than air so it rises out of the pot, so it isn't a chemical reaction, so much as a 'change of chemical state'.
The formation of steam is a physical change. The chemical composition of steam (water vapor), is H2O, and the chemical composition of liquid water is H2O, so there is no chemical change going from liquid to gas (vapor/steam). Thus, it is a physical change.
It would be difficult to reverse a chemical reaction. Only way I could think of is boiling it. I did a experiment in chem called ''condensing''. You collect the steam and eventually you will have water.
NO!!!! It is a physical change of water from liquid to gas(vapour).
A good example might be a steam locomotive. It starts with a chemical reaction, where carbon combines with oxygen in the firebox. This heats water to generate steam which drives the cylinders, which turn the wheels and make the locomotive move...a physical reaction. Or a gun, where a chemical reaction, the decomposition of a propellant creates gas which propels a bullet.
It is NOT a chemical reaction. Boiling is a physical reaction. When heat is applied to water in a pot, the hydrogen and oxygen molecules begin to get excited; they bounce around everywhere. The heat traps the oxygen molecules in bubbles, which go to the sides of the pot (following the path of least resistance). These bubbles then come to the surface, releasing oxygen and steam. Boiling is simply a phase change from a liquid to a gas.