When hair is wet, it swells as water penetrates the hair shaft, causing it to become more elastic and fragile. As the hair dries, it contracts, leading to a decrease in elasticity and strength. Wet hair can also stretch more than dry hair, making it more prone to breakage.
Quick drying is a physical property, meaning it is related to the behavior of a substance based on its physical attributes and interactions, rather than a chemical change. Materials that dry quickly typically have high surface area to volume ratios, allowing for rapid evaporation of moisture.
Dry iron filings and wet iron filings have different physical properties. Dry iron filings are free-flowing and easily spread out, while wet iron filings clump together due to the presence of water. Additionally, wet iron filings may rust more easily due to the moisture content.
A hair dryer uses hot air to speed up the evaporation of water from your hair. The heat from the dryer breaks the hydrogen bonds in the water molecules, allowing the water to change from a liquid to a vapor and evaporate more quickly from your hair.
If you cool air enough, it will eventually condense into liquid form. This liquid air can then be further cooled to solidify into a snowy substance known as dry ice. The physical properties of air change as it transitions from gas to liquid to solid at decreasing temperatures.
The amount of time it takes to dry hair with a hair dryer can vary depending on the length and thickness of your hair, as well as the heat and speed setting of the hair dryer. On average, it typically takes about 15-30 minutes to fully dry hair with a hair dryer.
When hair gets wet, it is a physical change. The change is reversible, as hair will dry and return to its original state. No new substances are formed during this process.
No, the drying of wet hair is a physical change, not a chemical change. The change in state from wet to dry is due to the evaporation of water and does not involve any chemical reactions altering the composition of the hair.
The drying of your hair after a shower is a physical change. This is because no new substances are being formed during the drying process; only the physical state of the water in your hair is changing from liquid to gas as it evaporates.
It's a physical change because when blow drying your hair, no new substance is made it just changed its form/appearance; from wet to dry. Therefore, it's a physical change.
Change shampoos to one for dry hair. they do help.
I just had this question for a chemistry and it is a physical change
The process of dry ice sublimating, or turning directly from a solid to a gas, is a physical change. No new substances are formed, just a change in the physical state of the dry ice from solid to gas.
A physical change
The answer is D; the sublimation of dry ice. A physical change alters one of the physical properties of a substance (e.g. size, shape, color, etc.), but it does not change the substance itself. A chemical change causes new substances to be formed. The new substances have different chemical properties from the original substance. Changes in the state or phase of matter, such as the sublimation of dry ice (solid carbon dioxide), are physical changes because the chemical compositions of the substances do not change. Sublimation is the change of an object from a solid-state directly to a gaseous state.
Melting dry ice is a physical change because it is a change in state from solid to gas without altering the chemical composition of the substance.
A physical change. It's chemically still CO2, whether solid or a gas.
No, drying of fish is a physical change, not a chemical change. The process of drying simply involves the removal of water from the fish, causing it to undergo a physical transformation, but its chemical composition remains the same.