Dalton and Macie were conducting an experiment at school. During the experiment, they added a little dry yeast to some hydrogen peroxide. The combination began to bubble rapidly, and the container felt warm. They captured some of the gas that was formed, and they discovered that the gas they captured had a new property. When they put a lit match into the gas, it made the lit match glow much brighter!

Question

. Dalton and Macie determine that a _______ change must have taken place. When this kind of change takes place, atoms must _______.

Answer 1

Dalton and Macie determine that a chemical change must have taken place. When this kind of change takes place, atoms must rearrange.