chemical property
when wood rots and forms humus is a physical change
Physical. If you were to cut that piece of wood in half what would it be? Still wood. There would be no chemical change. Just a physical change.
it is a chemical reaction because a new substance is formed when the wood rots
A physical property of wood is a characteristic that can be observed or measured without changing the wood's chemical composition, such as its density or color. A chemical property of wood involves how it interacts with other substances to undergo a chemical change, such as its ability to burn or react with certain chemicals.
One chemical property of wood is its combustion, which releases heat energy through a chemical reaction with oxygen. One physical property of wood is its density, which can vary depending on the type of wood species and its growth conditions.
Wood is a biologically produces substance and thus not of uniform consistency. Commonly, it can only poorly be described with chemical and physical terms.For more information, seehttp://en.wikipedia.org/wiki/Wood
Amena
The rotting of wood is primarily a chemical change. It involves the breakdown of the wood's organic compounds by microorganisms (such as fungi and bacteria) through processes like decomposition and oxidation. This results in the formation of new chemical substances and compounds.
No, inflamabillity is a chemical property, because burning (of anything) is a chemical change.
The rotting of wood is a chemical change because of many reasons. One of the reasons is because when wood rots, it produces mold, which is a new substance. The definition of chemical change is a change that produces one or more new substances. When the wood rots, you are unable to take the rotted wood and mold and make it back into wood that is yet to be rotted. So because the wood produces one (or more) new substances, the rotting of wood is a chemical change.
gold is an element
Melting ice is an example of a physical change. The solid ice changes to liquid water without altering its chemical composition.