• part of the mixture formed a new material with different properties.
Are you sure??? Explain
Yes, I am sure. In a chemical change, new substances are formed with properties that are different from the original substances. In this scenario, the person can conclude that there was a chemical change because the yellow solid formed after mixing the two liquids is a new material with different properties compared to the original clear and yellow liquids. This indicates a chemical reaction took place. Temperature, state changes, and total mass staying the same are not definitive indicators of a chemical change.
