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Is being resistant to corrosion a physical or chemical change?
Being resistant to corrosion is a physical property of a material, not a physical or chemical change. It means that the material does not undergo chemical reactions with its environment that would cause it to deteriorate over time.
Is the eye color physical or chemical change?
Eye color is a physical change, not a chemical change. Eye color is determined by the amount and distribution of melanin in the iris, which is a physical characteristic that can change over time but does not involve any chemical reactions.
When A bronze statue develops a green coating (patina) over time is physical change or chemical?
It is chemical. The copper in bronze turns green when it oxidizes.
Is a scab forming over a wound a physical or a chemical change?
A scab forming over a wound is a physical change. It occurs due to the process of coagulation, where blood cells and proteins solidify to form a protective layer over the wound.
Is A marshmallow is toasted over a campfire physical or chemical change?
The answer is physical because in physical they are 5 senses see, hear, touch,smell. The toasted marsh mallow you can taste it, smell it when you are far, touch it when you eat it, you can hear it when it comes out of the oven,and you can see it when it's on your plate.
Is mothballs disappear over time a chemical change?
It is a Physical Change.
Why do the mothballs in a clothes closet gradually disappear over time?
That is how they work: the insecticidal balls are made of para-dichlorobenzene (PDB, C6H4Cl2), an aromatic which will turn to vapor (sublime) at room temperature. The chemical is also used in urinal deodorizing cakes. Previously, mothballs had been made from the related chemical naphthalene, which has been identified as likely to be carcinogenic in humans.
Why do mothballs disappear EXPLAIN?
Mothballs contain a substance called naphthalene or paradichlorobenzene, which slowly evaporates when exposed to air. This process is known as sublimation, where a solid transforms directly into a gas without passing through the liquid phase. As the mothballs evaporate, they gradually disappear, leaving behind no residue or physical remnants.
Why do mothball disappear after a few weeks?
Mothballs contain a volatile chemical, typically naphthalene or paradichlorobenzene, which sublimates, turning from solid to gas. Over time, the concentration of these chemicals decreases as they evaporate into the air, leading to the mothballs disappearing. Additionally, environmental factors like temperature and airflow can accelerate this process. As the chemicals dissipate, their effectiveness in repelling pests diminishes.
Why mothballs turn small?
Mothballs turn small because they are made of a volatile chemical compound, such as naphthalene or paradichlorobenzene, that sublimes into a gas at room temperature. As the compound sublimes, it changes from a solid state directly to a gas, causing the mothballs to shrink over time.
What is an example of a chemical change that disappears?
One example of a chemical change that disappears is the formation of a complex between iron and cyanide ions to produce a deep blue color. However, over time, the complex can decompose and revert back to its original forms, causing the color to fade and the chemical change to disappear.
Is roasting meat over a campfire a physical or chemical change?
its an chemical change because roasting over a campfire the meat will be roasted so its chemical
Is a scab forming over a wound a physical or chemical change?
chemical
Is being resistant to corrosion a physical or chemical change?
Being resistant to corrosion is a physical property of a material, not a physical or chemical change. It means that the material does not undergo chemical reactions with its environment that would cause it to deteriorate over time.
The ability of a pond to freeze over in the winter is a?
chemical change
The ability of a pond to freeze over in winter is a?
chemical change
Will moth balls damage plastic or wiring?
Yes, mothballs can damage plastic and wiring due to the chemicals they release. The strong odor and fumes from mothballs can cause deterioration and discoloration of plastic materials, as well as corrosion of wiring over time. It is not recommended to use mothballs in areas where they can come into contact with plastic or wiring.
