Points out that when water freezes
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation.
Answer:
2
Explanation:
At the constant temp, the substance is going from a solid to a liquid and both are present (like melting ice)
