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rust
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∙ 12y ago
Delilah Baumgartner
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How does oxygen enters the body?
Oxygen enters the body by being absorbed into the blood (specifically, it is absorbed by red blood cells which contain an oxygen-carrying compound known as hemoglobin) when air is inhaled into the lungs, which have a highly porous, spongy structure which facilitates the exposure of blood to the air.
If an air bubble was trapped in a metal rod would it affect the rod's density?
Yes, the overall density would be less than if the rod were pure metal.
How do you clean rusty toilet bowl?
With great difficulty, as the discoloration is likely to have sunk into the porcelain.
How does a Refigerator or freezer work to keep things cold?
Dense gas is pumped through small holes within a metal tube, by a motorized "compressor." When this gas makes contact with the metal on the inside, it has a cooling effect and the metal absorbs the heat from the air on the outside of the tube. Once the heat has been absorbed, this air is pumped in, or cycled through the fridge and freezer to keep things cold.
Which type of exposure happens slowly over a long period of time?
illega exposure
Is discoloration of metal by exposure to air?
rust
What is a discoloration of metal by exposure to air?
Oxidation is the usual cause of discoloration when an iron is exposed to air. The atoms on the surface of the metal react with Oxygen in air to produce a metal oxide.
What are the circle discoloration spots on your back?
The circular discoloration spots on your back are most likely sun spots. These are caused from over exposure to the sun.
What is metal changes color over time from exposure to air what has likely occurred?
Chemical Reactions!!??
What is an argyria?
An argyria is a condition caused by improper exposure to silver or its compounds, characterized by a blue-grey discoloration of the skin.
How does copper look like?
Copper is a red orange metal that develops a blue green oxide coat on extended exposure to air.
What makes a penny turn green?
The copper metal oxidizes from exposure to air and moisture, forming a coating of copper carbonate.It an also help crops
What makes a quarter rust?
A 25 cent coin (quarter will not rust- they are no made of ferrous metal. They may tarnish- usually from exposure to air and sulfur.
What type of change is rust formed into iron after exposure to air?
Corrosion is the reverse of the change of state in your question. Rust is corroded metal [ iron, steel ].
What makes quarter rust?
A 25 cent coin (quarter will not rust- they are no made of ferrous metal. They may tarnish- usually from exposure to air and sulfur.
How metals change due to exposure to the air?
Some metals, namely iron, oxidize (that is the metal loses electrons) in the presence of air. This causes a chemical change to iron oxide, which is responsible for rusting.
What metal goes rusty?
most common metals tarnish slowly in exposure to air. metals that tarnish quickly in exposure to air are for example: lithium, sodium and potassium Gold is one of the slowest to tarnish.
