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Substances like iron can react with oxygen in the air, forming iron oxide (rust). Another example is fats and oils, which can become rancid due to oxidation when exposed to air. Additionally, volatile organic compounds (VOCs) can evaporate into the air from liquid or solid materials.
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Is copper turning green when exposed to the environment a chemical change?
Chemical because it is being exposed to another compound and forming a new substance
Why heating copper wire in the presence of air at high temperature a chemical change Why?
Heating copper wire in the presence of air at high temperatures causes a chemical change because it leads to the oxidation of copper. When exposed to oxygen, copper reacts to form copper oxide, resulting in a new substance with different properties. This transformation involves a rearrangement of atoms and bonds, characteristic of a chemical change, as opposed to a physical change where the substance remains the same.
When copper turns green when exposed to the environment a physical or chemical change?
First, copper doesn't "turn green," it reacts with oxygen in the air to form copper oxide. This is a chemical change, because copper oxide is a substance that was not there before.
What do you call the liquid substance that is form during burning candle and became solid when exposed to air?
It is called as wax.
When does a substance evaporate?
A substance evaporates when its molecules gain enough energy to overcome the attractive forces holding them together in the liquid phase, allowing them to escape into the air as gas. This typically occurs when the substance is heated to its boiling point or when exposed to air with low vapor pressure.
Do nonmetals change chemically when exposed to air?
No nonmetals don't change chemically when they are exposed to air! ;)
Why does liquid nitrogen exposed to air is a physical change?
When liquid nitrogen is exposed to air, it rapidly evaporates and turns into nitrogen gas. This process is a physical change because only the physical state of the substance is changed from liquid to gas, without altering its chemical composition.
Is a form of green carbonate when exposed to moist air a physical property or chemical property?
This is a chemical property. The reaction of green carbonate with moist air to form a different substance involves a change in the chemical composition of the substance, indicating a chemical reaction.
What substance does a low-orders explosive resemble when exposed to air and sunlight?
dark rocks
What substance does a low explosive resemble when exposed to air or sunlight?
Red brown rocks
What substance does a low-order expolsive resemble when exposed to air and sunlight?
Dark Brown Rocks
Is copper turning green when exposed to the environment a chemical change?
Chemical because it is being exposed to another compound and forming a new substance
Why heating copper wire in the presence of air at high temperature a chemical change Why?
Heating copper wire in the presence of air at high temperatures causes a chemical change because it leads to the oxidation of copper. When exposed to oxygen, copper reacts to form copper oxide, resulting in a new substance with different properties. This transformation involves a rearrangement of atoms and bonds, characteristic of a chemical change, as opposed to a physical change where the substance remains the same.
When copper turns green when exposed to the environment a physical or chemical change?
First, copper doesn't "turn green," it reacts with oxygen in the air to form copper oxide. This is a chemical change, because copper oxide is a substance that was not there before.
What is a substance that will change from a soild into a liquid?
A substance that will change from a solid to a liquid is called a melting substance. This process is known as melting, where the solid substance absorbs heat energy and transitions into a liquid state.
What substance does a low-order explosive resemble when exposed to air and sunlight?
These explosives resemble dark brown rocks when exposed to the elements. They often begin to decompose after such exposure.
What substance does low order explosive resemble when exposed to air and sunlight?
These explosives resemble dark brown rocks when exposed to the elements. They often begin to decompose after such exposure.
