Question

What kind of change is this an example of and how do you know

Answer 1

Answer:

In a chemical reaction two or more substances, called the reactants, form different substances called products. In the above examples the wood and oxygen were the reactants that, when heated, formed the products of ash and smoke (gases). Water, iron and oxygen were the reactants that formed the product called rust.

Answer 2

Answer:

example for what

Explanation:

if you tell us we then only know