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Is ammounium chloride and water a physical or chemical change?

When ammonium chloride(NH4Cl) is dissolved in water the solvation process itself is a physical change, NH4Cl changes from one of its state (crystalline) to solution, where NH4+ and Cl- ions are surrounded by water molecules.


When a small amount of solid ammonium chloride is shaken with water a colourless solution forms what type of change has occurred?

A physical change has occurred, where the ammonium chloride solid has dissolved in water to form a colorless solution. No new substances are formed in this process, so it is still the same compound but now in a different state (solid to solution).


Is urine a compound?

Urine is a liquid waste product composed of water, electrolytes, and waste substances like urea and creatinine. It is not a compound but a complex mixture.


How is a mixture same as a solution?

in both, substances mix together


How is the mixture the same as a solution?

in both, substances mix together


What makes a solution homogeneous?

A solution is considered homogeneous when its components are uniformly distributed and have the same physical and chemical properties throughout. This results in a single phase with no visible boundaries between the different substances dissolved in the solvent.


What happens when the concentration of dissolved substances is in the same in both the cell and the solution in which it is placed?

Isotonic solution


Does physical state of matter always change during a chemical change?

Not necessarily. Some chemical reactions may change the physical state of matter (e.g. solid to liquid), while others may not involve a change in physical state. It depends on the specific reaction and the properties of the substances involved.


Is it true when a physical change that takes new substances are formed?

No, in a physical change, no new substances are formed. The change only affects the physical appearance or state of the matter, such as size, shape, or phase, but the chemical composition remains the same.


Is mixing two cheeses in a bowl a physical or chemical change?

No. The cheese is still cheese, it's just in pieces now.


How are mixtures and solution same?

Mixtures and solutions are both combinations of two or more substances. In a mixture, the substances are physically combined and can be separated by physical means, while in a solution, one substance (solute) is dissolved in another (solvent) at a molecular level and cannot be easily separated.


In a physical change some of the substances in a material change but the properties if the material stay the same?

Yes, in a physical change, the arrangement or state of the particles in a substance can change, but the chemical composition and fundamental properties remain the same. Examples of physical changes include changes in state (solid to liquid), size, shape, or phase transitions.