The dissociation of NaOH (sodium hydroxide) in water is a physical change. When NaOH dissolves, it separates into its constituent ions, Na⁺ and OH⁻, without altering the chemical structure of the compound itself. This process is reversible, as the ions can recombine to form NaOH again if the water is evaporated. Thus, it primarily involves a change in state rather than a change in chemical identity.
It is simply a chemical change.
2NaCl is a chemical compound composed of two atoms of sodium (Na) and one molecule of chlorine (Cl) covalently bonded. Therefore, it is a chemical compound, not a chemical reaction or physical change.
An example is the dissociation of NaCl in water: NaCl (s) -> Na+ (aq) + Cl- (aq). Here, NaCl breaks apart into its constituent ions, Na+ and Cl-, when dissolved in water due to the attraction between the ions and water molecules.
You can tell a chemical and a physical change apart because a physical change is any change in size, shape, form, or state where identity of the matter stays the same.Example of a physical: If you cut a watermelon into chunks, the watermelon has changed size and shape.If you put one of the chunks into your mouth and bite it you have changed the size and shape again.Chemical change occurs when one type of matter changes with different properties chemical change goes around you everyday.Signs of a chemical change are the formation of a gas.yes because i wrote it!
It is a chemical change because the sodium(Na) is a liquid that forms with a yellow gas, chlorine(Cl), which changes the physical state to a dickmuncher solid, but ultimately they reacted with each other chemically to form salt (NaCl). It does change the physical state, but it is more of a chemical reaction.
Dissolution is considered a physical process.
It is simply a chemical change.
It is not a chemical reaction, it is only a dissociation reaction:NaCl-------------------------Na+ + Cl-
It is a chemical change because the sodium(Na) is a liquid that forms with a yellow gas, chlorine(Cl), which changes the physical state to a dickmuncher solid, but ultimately they reacted with each other chemically to form salt (NaCl). It does change the physical state, but it is more of a chemical reaction.
2NaCl is a chemical compound composed of two atoms of sodium (Na) and one molecule of chlorine (Cl) covalently bonded. Therefore, it is a chemical compound, not a chemical reaction or physical change.
The dissolution of salt in water is a physical change (not a chemical change) because even after the salt (NaCl) is all dissolved, it is still NaCl but in a ionized form, like Na^+ and Cl^-. So, there has been no chemical change at all, only a physical change in going from a solid to a solution.
The dissolution of salt in water is a physical change (not a chemical change) because even after the salt (NaCl) is all dissolved, it is still NaCl but in a ionized form, like Na^+ and Cl^-. So, there has been no chemical change at all, only a physical change in going from a solid to a solution.
An example is the dissociation of NaCl in water: NaCl (s) -> Na+ (aq) + Cl- (aq). Here, NaCl breaks apart into its constituent ions, Na+ and Cl-, when dissolved in water due to the attraction between the ions and water molecules.
The equation is: NaCl----------Na++ Cl-
Physical (not chemical) changesNaCl(s) → Na+(aq) + Cl-(aq)Added:These are NOT chemical changes. In solid NaCl there are already Na+ and Cl- ions present in the (fully ionic)crystallic matrix. These ions are only separated by the water molecules. This is exactly what is called: 'dissolving'
Dissociation of sodium chloride in water solution: NaCl -----------Na+ + Cl-
You can tell a chemical and a physical change apart because a physical change is any change in size, shape, form, or state where identity of the matter stays the same.Example of a physical: If you cut a watermelon into chunks, the watermelon has changed size and shape.If you put one of the chunks into your mouth and bite it you have changed the size and shape again.Chemical change occurs when one type of matter changes with different properties chemical change goes around you everyday.Signs of a chemical change are the formation of a gas.yes because i wrote it!