When water is split into hydrogen and oxygen what happens-
is it a change in matter
When water is split into hydrogen and oxygen, it undergoes a chemical reaction known as electrolysis. During electrolysis, an electric current is passed through water, causing the water molecules to break apart into their constituent elements.
This process occurs in an electrolytic cell, which consists of two electrodes—one is called the anode, and the other is the cathode—immersed in a solution of water and an electrolyte, such as sodium or potassium hydroxide. The anode is positively charged, while the cathode is negatively charged.
As the electric current flows through the water, it causes the water molecules (H2O) to dissociate into hydrogen (H2) gas at the cathode and oxygen (O2) gas at the anode. This happens because the electric current provides the energy necessary to overcome the bond between hydrogen and oxygen atoms in the water molecule.
So, to summarize, when water is split into hydrogen and oxygen through electrolysis, it is indeed a change in matter as the water molecules are broken down into separate elements.