Not unless it is a reversible reaction (Such as the Haber Process). If it is not reversible, you cannot get the same substances back.
It depends: just try to relate, try to write a chemical equation for and see if there are byproducts. Most likely, if the same chemical still has its same properties After the reaction, a chemical reaction has not occurred.
no- melting is not a chemical change. It is merely a change in state of the same substance not a chemical reaction.
The difference is that chemical equilibrium is the equilibrium of products and reactants in a reaction while physical equilibrium is the equilibrium of the physical states of the same substance.
A physical property is something like color, size, and state. The substance still stays the same! A chemical property is a change in substance. Burning is a chemical property because if you burn a piece of wood, it is a new substance and you cant change it back to regular wood. It is usually very hard to change a chemical change BACK to its original substance. The answer to this is No
No, the number of particles of a substance is determined by the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. The number of particles remains the same before and after the reaction.
A chemical change is the same as a chemical reaction.
It depends: just try to relate, try to write a chemical equation for and see if there are byproducts. Most likely, if the same chemical still has its same properties After the reaction, a chemical reaction has not occurred.
use formulas to represent the substance involved in a reaction.
no- melting is not a chemical change. It is merely a change in state of the same substance not a chemical reaction.
cause chemical reactions cant be reversed
In a physical change, the chemical composition of the substance remains the same, but some physical properties like shape, size, or state may change. This means that the substance can be reversed back to its original state without undergoing a chemical reaction.
The difference is that chemical equilibrium is the equilibrium of products and reactants in a reaction while physical equilibrium is the equilibrium of the physical states of the same substance.
Because no chemical reaction is taking place. It is the same substance, just in a different state of matter.
Burning is a chemical reaction between a substance and oxygen. Sublimation is a type of physical state change produced by changes in temperature and/or pressure; it is not a chemical reaction. Sublimation is not the same as combustion.
All samples of a compound have the same composition; that is a chemical reaction that takes place and a new substance is formed. So yes.
It depends: just try to relate, try to write a chemical equation for and see if there are byproducts. Most likely, if the same chemical still has its same properties After the reaction, a chemical reaction has not occurred.
A physical property is something like color, size, and state. The substance still stays the same! A chemical property is a change in substance. Burning is a chemical property because if you burn a piece of wood, it is a new substance and you cant change it back to regular wood. It is usually very hard to change a chemical change BACK to its original substance. The answer to this is No