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What happens when you put a penny in water?

When you put a penny in water, its density is greater than that of water, so the penny sinks. This is because the weight of the water displaced by the penny is less than the weight of the penny itself.


What is a penny piece made from?

First lets define "Penny Piece". A Penny Piece is a quite unattractive lady. If you see any lady that is under a 5.5 on the lady judgment scale, she is in fact a Penny Piece. So a Penny Piece is made from a man and a Penny Piece mating to conceive another Penny Piece.


What is the causal organism for black rust of wheat?

The causal organism for black rust of wheat is a fungus called Puccinia graminis. It is a destructive pathogen that infects wheat plants and causes black pustules or lesions on the leaves, which can lead to reduced yield and quality of the wheat crop. Fungicides and resistant wheat varieties can help manage this disease.


What is the corrosion on a penny?

The corrosion on a penny is typically a greenish-blue substance called copper oxide that forms when the copper in the penny reacts with oxygen in the air and moisture. This process is known as oxidation and can give the penny a dull or tarnished appearance.


Why did you have to be so careful about having a clean penny when doing the gold penny lab?

Having a clean penny ensures that there are no contaminants or other substances on the surface that could interfere with the chemical reaction during the gold penny lab. Any impurities on the penny could affect the results and prevent the gold plating from adhering properly, leading to inaccurate conclusions.