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.
Chemical because it is being exposed to another compound and forming a new substance
No, flammability is a chemical property, not a physical change. Flammability refers to a substance's ability to undergo combustion when exposed to a flame or spark, which involves a chemical reaction where new substances are formed.
The ease of corrosion of resistance to corrosion is a chemical property and not a physical one. Corrosion is a chemical change which changes the identity of the substance.
It is a physical change.Density is not a chemical property. Instead, it is a physical property.
When copper turns green upon exposure to air, it undergoes a chemical change. This process occurs due to the reaction of copper with oxygen and moisture in the environment, forming copper carbonate and other compounds, commonly referred to as patina. Unlike physical changes, which do not alter the substance's chemical identity, this transformation changes the composition of the material.
It is a chemical change.
Chemical because it is being exposed to another compound and forming a new substance
chemical
rock
Mildew in the shower is a biological change, not a chemical or physical change. It is the result of mold or fungus growth due to moisture and organic matter in the environment.
This is a chemical property of an element. It indicates how an element interacts with other substances. In this case, the element does not undergo a chemical change when exposed to hydrogen.
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.
Baking a cake is a chemical change because the ingredients undergo a chemical reaction when exposed to heat, resulting in a transformation of their molecular structure to form the cake. This is different from a physical change, which does not alter the composition of the ingredients.
The ease of corrosion of resistance to corrosion is a chemical property and not a physical one. Corrosion is a chemical change which changes the identity of the substance.
No, flammability is a chemical property, not a physical change. Flammability refers to a substance's ability to undergo combustion when exposed to a flame or spark, which involves a chemical reaction where new substances are formed.
A physical change
Grilling a burger is a chemical change because the proteins and fats in the meat undergo chemical reactions when exposed to heat, leading to the formation of new compounds that give the burger its characteristic flavor and color.