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It's chemical because you have to heat a liquid until it's super hot then you put the penny's in a cooler liquid and then it changes color.
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∙ 9y ago
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Is cleaning a penny with vinegar and salt a physical or chemical change?
It is a chemical reaction and this is the correct way to spell penny!
Is melting gold a physical or a chemical change?
Physical.
Is gold a chemical property or physical?
Gold is an elemental metal (Au) and is not a property.
Is Gold shiny a chemical property or physical property?
gold is an element
Is salt and vinegar removing tarnish from a penny a physical change?
Physical change
Is turning a penny gold a chemical or physical reaction?
Anything else then dropping it in molten gold is chemical
Is a blackened penny a physical or chemical change?
Chemical
Is cleaning a penny with vinegar and salt a physical or chemical change?
It is a chemical reaction and this is the correct way to spell penny!
Is a copper penny turning dark a chemical change or physical change?
Chemical.
Is putting a penny in lemon juice a physical or chemical change?
physical reaction
Is melting gold a physical or a chemical change?
Physical.
Is hammering gold into foil a physical or chemical?
physical
Is gold a chemical property or physical?
Gold is an elemental metal (Au) and is not a property.
Is Pouring molten gold in a mold a physical or chemical change?
Physical
Is Gold shiny a chemical property or physical property?
gold is an element
The color of gold physical or chemical?
Color is a physical property.
Forming a bar of gold into wire chemical or physical?
When a gold bar is shaped into a wire, the gold's chemical properties do not change. Only the physical appearance changes when gold is changed in shape. Thus, this is an example of a physical change.
